I kind of understand the frustration with their crusade against solo exp on battle classes, and I don't care for some of the Vana'diel-esque additions recently, and don't even get me started on the server lag during the Ifrit fight!

Still I disagree that the game is being destroyed for casuals. You have leves, company leves, behest, side-quests, all of which are entirely geared towards casual players. Crafting recipes have been simplified, making it much less of a time sink than it once was. Gathering classes are...well...gathering classes. >_>

There are plenty of options if you take the time to look around. No you won't get as much xp as a party would, but you're hardly left completely without solo options if you so choose.