The answer about blitzball is worrying.
Blitzball itself isn't important ; the problem is Yoshida's mindset. Why does he want to add blitzball? Because some players asked it, and because he wants to make a fan-service FF. Not because he actually has a good idea. He looks unmotivated to actually make it, and hopes to get away with a cheap shortcut, but a squadron-bis is unneeded, since we precisely already have squadrons (and you can actually play with your squadron)
And what the **** is "MMORPG-like" in managing a team of NPC through a menu?! It's impossible to take him seriously when he spews such bs.

The game needs a fun mini-game that can be done casually with friends and guild members, like chocobo races, except current races are trash and the unneeded leveling of the chocobo makes it hard to play with friends since everyone has a different chocobo level. Update races first to show you can actually make a decent mini-game, and think about blitzball later.
And the fetishism on rewards needs to disappear. Bigger rewards doesn't make the content better, so if you think you need to put tomestones on blitzball, something is wrong.