The chicanery surrounding that whole sequence kind of lends itself away from paying attention to Hydaelyn's words closely. It's in the lines from her:
HYDAELYN: "Now you, my chosen, have surpassed my expectations. Surpassed me. I entrust the fate of the universe unto you."
It is sandwiched between Y'shtola's scripterwriter driven monologue, Hydaelyn's awareness of her wrongdoing, and passing on Meteion's locator crystal.
This one line says so much. It's staggering in its characterization of her (and of course I wonder what it is in other languages).
It means, she expected us to lose to her, at the very least. That while she longed for mankind to surpass her, she never thought they actually would.
It means that her perception of the Sundered(Hell, the Unsundered for that matter, too) is similar to Emet-selch's. She's just focused on us being to feeble for a different responsibility. Rather than, "Too feeble to be stewards of any star!" It's, "Too feeble to entrust with the fate of the universe."
But you know, she wasn't concerned with mincing words about it. She wanted to get right down to the test of power. The test of strength. Like any true kratocrat.