Lyxen
Great Old One
It was always bland, restrictive, and sometimes nonsensical.
Sometimes nonsensical, but no, certainly less bland. I'm not sure about the "restrictive". Although I will admit that it's good that WotC adresses the implicit "always" in the alignment of some races, I would like to point out that 3e already did it quite well at the time and honestly, even in BECMI or AD&D we had absolutely no problem ignoring the alignment tag that came with monster races.
Nothing about the D&D elf makes it the most ultimately suited race for woodland fighting. And they barely have special woodland powers nor features. And they don't have alien mindsets. So end up with a race restricted to a climate to make up for bad rules or saving book page space.
And that is exactly what I'm protesting against. At least the racial stats made some sort of sense, as well as the different types of vision in previous editions, it gave at least an edge.
As for the mindset, this is much more about roleplaying, and there have been intersting strong mindsets, although some were quite tolkienish, there were already fairly different takes on them even in previous editions, see the Elfes of Alfheim or those of Spelljammer.