Good point, like "veteran presence" eh? Yea that's one usefulness of them irl which we can't emulate here.
That said I guess if they at least play scrimmages, they should also deserve it, since they soak up scrimmage minutes to allow their league playing counterparts to play the league efficiently. On the other hand, those 50 year old players on 50 man rosters... Yea I guess they don't really bring any benefit. Leeches off their club for salary as well.