Of course there are nuances like schedule conflicts. But that is still a you issue. Are we saying that you are working and sleeping only 7 days a week and you have no down time? Or are we talking about you get home from work and decide you dont want to play FFXIV but catch up on a show or movie. How you spend your free time is up to you, and why you do it is also your call. But that is on you, not the content in the game.
There are people playing this game at all hours. Also, are you saying youre going from work to bed every day 7/12?
I did it without VC. Most PFs I see dont require it, and frankly it doesnt require VC to do. Dont get me wrong, VC is great at times. But it's not a necessity. The major coordination issues are about determining positions or preset things. If you memorize the mechanics, you dont need call outs typically.
Again, this is a you problem. Super unfortunate, but it's still a you issue. If you dont get to see your latest Netflix show cause your internet is bad, is that netflixes problem or yours? Hell bad latency stops you from doing most content, not just ex or savage.
I go into PF, and know how crappy it can be. Yeah this sucks, but its more an exception. Ive never had to wait 2+ hours on current content in PF and I see the rage quit typically after people on hte whole have cleared it. Honestly, best time to learn a fight is to do it when it comes out. Avoid the "Know the Mechanics or insta kick" groups cause those are traps. Btw, most people for whatever reason are scared to make their own PF. So if you dont see a PF for a learning party or prog, dont be afraid to make one. There's lots of players out there who are willing to join one, but are afraid of making one.
I havent checked if theres a normal version of this fight honestly. If there's not, then that should be corrected. But the EX fight itself is just the normal with some extra mechanics.