From a gameplay standpoint, new Summoner is hilariously under designed and is insulting to former Summoner mains. But from a thematic standpoint, I vastly prefer the job's new aesthetic direction. FFXIV is its own game, but is still deeply connected with the series proper, and for a lot of people, the identity of a job's gameplay is extremely important. Summoner has always struggled to feel like a proper representation of the Summoner job from the series, which is otherwise one of the most prominent in terms of its identity. Summons were a tacky DOT with ugly, underwhelming representations of iconic Final Fantasy characters--the summons themselves.
This is not to say that I feel the old Summoner's gameplay was bad or didn't deserve to exist. I just don't know why we called that job "Summoner" at all. I would've just called that job "Arcanist" and leave "Summoner" as an available concept that could be explored later instead. That way the original playstyle could be preserved while leaving the door open for a job that would better represent the Summoner namesake for players who like the identity of Summoner. (Something better than the attrocity that we got in Endwalker no less). I'd say the same for Bard as well.
"Bard" is not a Bard. It's something else, and I would rather call it something else so that a real Bard could exist in the future.