Your nonsense post got some of these folks who are often at each others throats to agree against you. It speaks volumes.
Personally I would argue any form of battlepass system is bad to some degree but the PvP one in XIV is definetly one of the more forgiving ones, I suppose I've been burnt out before on the EA and Blizzard levels of FOMO.
I'm not really convinced it has actually had much of an effect on number of players, generally if you do enjoy the PvP then you'll be doing it anyway for the standard rewards and if you just want the series rewards you'll probably knock those out in a couple of weeks and then be done.
The real fix to this is to generally improve the PvP mode so more people will actually want to play it and you wouldn't need FOMO tactics in the first place, but that's another discussion.
Battlepass is not a good system, it's another coping mechanism gamers have learned to accept. That mobile play style along with Facebook gaming play styles are rubbish. You shouldn't be earning rewards for checking in, or looking at a shop menu, or spending time in the menu clicking confirm for reward or 'sending your units' and not playing for the next 3 days. You should be rewarded for gaming.
If terrible pvp is the issue how does getting rid of series fix this? You'll still have to play to get said rewards. I already grind at my own pace with series around and 4 months is more than enough. No one and I mean no one HAS to hypergrind anything. Also just saying, FOMO only works on weaker willed people. I don't fear missing out on a digital cosmetic