FFXIV 1.0 had more elements of XI than current FFXIV by far, and I found it tolerable enough to make it to level 50 and clear some content. It lacked the depth of customization that XI had and wasn't really a proper sequel, but it was closer.
My biggest complaint is that they made it exceedingly hard to excel in any way. You couldn't low man because the light party and full party accuracy buffs were all but necessary for fights, so even things that you could engage with less than the requisite number of people were not likely to be killed. Respawns were processed on fixed intervals, rather than relative to the time the mob died, so it didn't matter if you cleared a camp in 30 seconds or 2 minutes, you'd get the same exp because the mobs respawned every 2:30.
ARR doubled down on all of these elements, completely eliminating the majority of planning and preparation's impact. You still need coordination for the more difficult fights, but it's not in any way like XI, where the coordination and prep work are such a heavy component that the fights themselves are basically an afterthought if you've adequately prepared.
There's not anything inherently wrong with any of this, but it's not the environment that XI provides, and I don't like it. I don't blame SE specifically for being money grubbing sobs and designing for the lowest common denominator, that's how every company is now. I just wish they weren't.