Wouldn’t it make sense if many abilities that affect the party should also affect your team? For example, Sweet Veil, Flower Veil, etc. Or abilities like Damp.
If you have to keep these Pokemon active it’s a bit annoying because many of them are not strong enough, e.g. Friend Guard Pokemon are babies.
If keeping them in your team was enough for you or your party to get their effects, then I am pretty sure that their use would be increased. What do you think?