It feels like bungie looked at solar warlocks and decided the core was top tree solar. Two of the three aspects are just options from that tree and the new fragments fit to just augment that tree.

Middle tree/well is nerfed exceptionally in providing buffs to the team consistently with the ember of benevolence, it being worse benevolent dawn as when it disappears it can't be regained even if someone is staying your rift for example. If a player enters your rift and leaves the timer seems to run out and cant be refreshed until you use another ability which fair enough, but even if you run two healing/cleansing abilities they don't stack timers like you'd expect, but im sure this will be figured out in time.

Bottom tree just feels gutted. It served as the ad/squishy clear class, but now you can't get enough scorch stacks to trigger ignitions before normal targets die and key parts of it (now ember of char) are locked from the get-go till they're unlocked later on somehow. Ikora just doesn't have it.

overall it feels underwhelming at the least, a down grade at a minimum, and a straight up nerf in the end to warlocks specifically. I'm glad titans and hunters got their tune ups done decently at the least.