With the one-timer indicators I believe those can be turned off on your own end... i'm not sure for every gamemode because i have noticed certain settings being completely gone but i have not specifically looked for this one.
The way the WOC store is done i think is good, bags were fun to open on previous games but being able to buy what you actually want is cool but I'd like to see a club store where you could buy stuff for your club especially branding items. Maybe bags could stay for like rare or legendary club items but a store for the rest of the stuff.
The pressure meter like the one-timer indicator can be turned off on your own end as well I believe (might be wrong). I have not noticed anything with the home teams fans cheering for the away team though, maybe just never payed attention to that, maybe they are cheering on the home team, I've witnessed a few times where the jets were being kept in their zone and the arena was chanting "go jets go" for them to break out of their own zone so maybe ea is trying to simulate a similar environment to that?