My theory is thus:
When the PC entered Eorzea, they are gifted with two things. One being the Echo - the ability to see people's pasts, understand languages, and see otherworldly beings that also have the Echo (aka Ascians and the spirit form of that one Sahagin) - and the other being the Light, which is effectively Hydaelyn herself using the PC as a medium with which to exert her Will upon... well, Hydaelyn. The Echo makes one special, sure, but it is the Light that makes the PC the Warrior of Light - after all, Minfilia also has the Echo and no one refers to HER as a Warrior of Light (though I could think of plenty of other good reasons as well...).
However, with Bahamut up in Dalamud having drained the Lifestream to the extent he did during the cataclysm - along with our new friend Middy also potentially leeching her power to recover from his double-KO with the Agrias - Hydaelyn herself is still recovering and thus does not possess the power she should. The most she could do was still quite impressive - the aforementioned ripping of primal energy from Ultima Weapon and stopping the trademark Final Fantasy super-spell from eradicating the PC and his allies - but is also quite taxing on her still recovering reserves.
Enter Middy, who made a sort of covenant at some distant point in time and honors it by stripping the PC of the Light and offering his own protection instead. With the PC no longer Hydaelyn's medium, they no longer have access to Her divine protection in the form of the Light. However, we now have the protection of a great ancient wyrm who is supposedly on the verge of recovery. Perhaps the covenant is to protect her Chosen in her stead if she is in no position to do so? She certainly doesn't seem to be in a position to protect the PC like she wishes.
However, the Echo and the Light are two separate things. The Echo itself is a second gift - or perhaps a trait inherent in all life that can be turned "on" or "off" by a being of enough power - while the Light was us being a conduit for Hydaelyn's power. So, while the latter is gone by Middy, the PC still retains the former until such a time as it is taken from them... if can be taken away again once given.
So... um... yeah.
When the PC entered Eorzea, they are gifted with two things. One being the Echo - the ability to see people's pasts, understand languages, and see otherworldly beings that also have the Echo (aka Ascians and the spirit form of that one Sahagin) - and the other being the Light, which is effectively Hydaelyn herself using the PC as a medium with which to exert her Will upon... well, Hydaelyn. The Echo makes one special, sure, but it is the Light that makes the PC the Warrior of Light - after all, Minfilia also has the Echo and no one refers to HER as a Warrior of Light (though I could think of plenty of other good reasons as well...).
However, with Bahamut up in Dalamud having drained the Lifestream to the extent he did during the cataclysm - along with our new friend Middy also potentially leeching her power to recover from his double-KO with the Agrias - Hydaelyn herself is still recovering and thus does not possess the power she should. The most she could do was still quite impressive - the aforementioned ripping of primal energy from Ultima Weapon and stopping the trademark Final Fantasy super-spell from eradicating the PC and his allies - but is also quite taxing on her still recovering reserves.
Enter Middy, who made a sort of covenant at some distant point in time and honors it by stripping the PC of the Light and offering his own protection instead. With the PC no longer Hydaelyn's medium, they no longer have access to Her divine protection in the form of the Light. However, we now have the protection of a great ancient wyrm who is supposedly on the verge of recovery. Perhaps the covenant is to protect her Chosen in her stead if she is in no position to do so? She certainly doesn't seem to be in a position to protect the PC like she wishes.
However, the Echo and the Light are two separate things. The Echo itself is a second gift - or perhaps a trait inherent in all life that can be turned "on" or "off" by a being of enough power - while the Light was us being a conduit for Hydaelyn's power. So, while the latter is gone by Middy, the PC still retains the former until such a time as it is taken from them... if can be taken away again once given.
So... um... yeah.