The Iron Pigs pitching staff is still likely to be pretty important, it's just that 3-5 of those arms are in the majors for now (between the expanded rosters and injuries). Just hopefully not too important.
If it turns out neither Moniak nor Bohm/Stott play in Allentown this year that would be great. If it turns out Torreyes is never needed, ditto. Kingery will still be there trying to reclaim a roster spot (or trade value). And both catchers will be worth following.
The thinnness is largely due to COVID slowing some ascents but the good players have also been mostly skipping AAA for a long time now. Even on the Phillies, if with poor results so far.