The real problem is that it being a brand focused on "performance" effectively neuters any attempt Lexus will make in the future about having performance models. Lexus is not allowed to step GR (and by extension Akio's) toes. The Germans understood this and only had their performance divisions be sub-brands. Of course you have VAG's portfolio of performance brands, but those were already established prestige nameplates by the time they merged, and so people won't mind if an Audi RS8 has the same power as a Lambo Urus - they're buying the badge.
For some odd reason, Toyota seems to think that making Lexus into an EV brand will somehow be enough to reshape its identity, which is an absolutely insane mindset to have in 2025.