I would also prefer 1.x (1.7 or 1.9) for a few months before going over to 2.0, but starting with 1.2 in 2023 is probably way too rough for the majority of players. While not having to rush for endgame is very good, the lvling grind does feels very stale and unrewarding, and there's only so much side content one can do.
Yes, there are many players who did not experience 1.2 or many who remember it very fondly, but don't forget that many things that made the game exciting back then (exploring new maps, finishing a tough dungeon for the first time etc) can't be recreated, simply because you cannot do those things for the first time ever again.
There are many "hardcore" players who want classic to be as hard as possible so they can get a sense of accomplishment from having the willpower to tough it out, but truth of the matter is this game desperately needs casuals to thrive or we will be looking at one (1) server with 2-300 players max. Gatekeeping phrases like "if you can't stand the grind you don't deserve to play anyway", "if you don't like getting ganked you should just quit" etc may make you feel cool but in reality this sort of attitude just turns away players who could've enriched the server. The pure pve players add life in an mmo, even a relatively pvp focused one such as Aion (and who knows, they might even join the pool of pvp players eventually and add more variety there as well).