As Vickii points out, you have effectively finished the game, until the next patch, you have beaten the game. When that happens some people go play another game until there is more to do, some return, some don't. However for players who do explore the whole game, there is no beating the game because it is open ended.
That's not the same situation. The majority of issues with FFXIV 1.0 were not related to the story, were they? The things that 'killed' the game were the ridiculous platform requirements and performance. I'm not aware of what complaints there were about content or battle system - or whatever else - because a) I never played v1.x and b) they were not the primary reasons for the problems that FFXIV 1.0 faced.
I don't agree with this at all. If you are running Alex Savage, then even just looking at the recent census statistics, you're part of a pretty small minority of players who have step foot in Alex Savage. Judging by the ilvl 200/210 pieces of gear you possess I presume you are in fact raiding Alex Savage. In which case, whether you like it or not, you are in fact part of that hardcore group.
I think your perspective is not at all that of a "mid-core" player, you are in fact a very capable raider which to be honest places you within that hardcore group. But, yes, from that point of view, FFXIV doesn't really cater much to you.
If we boil the game down to it's essentials, armor protects, weapons do damage (or heal) and nothing else matters. weapons are little more than sticks that accomplish their function. In other words one set or armor is functionally identical to another, it can't be otherwise. The same is true for weapons, they fulfill the same function, so by definition they are functionally identical.
The problem is that everyone is afraid that if side-grades or horizontal progression became a thing, it would cause balance problems and break content. Honestly, I don't see how that could be any worse than the degree to which over gearing breaks content already.