I (and many others) agree and support the OP's claim that the change allowing users to have infinite stamina, specifically in Clubs, feels terrible.
I know this isn't a "realistic" game mode, but to have forwards sprinting back and forth 90 minutes, pressing like madmen, and suffer almost no penalty for it feels bad. It also feels bad when you're outnumbered, which is fairly often, and teams of 3+ are a lot more likely to have players sprinting/pressing constantly.
It also feels bad for the people who formerly built their pro around a similar playstyle (high stamina, speed, tackling, relentless, etc.). We have a player who specializes in that, but now that role is less special.
Not sure if this account is connected to the one I use on my Xbox, but I've been playing this mode for a long time and this is one of the worst changes I've ever seen.
Aside from this one issue, the gameplay in Clubs this year generally feels better, so well done. But, please revert the stamina change.