I am less concerned that they have burned up the bullpen than I am that there as many as three relievers I wouldn't want to be available in a tight game ever again. Kimbrel is just not the guy he was in the first half (which we all saw happening), to me Soto was already the last arm in the pen (I would have given his spot to Kerkering if they'd wanted Covey as a middle reliever) and you can't use Kerkering again until he gets a low-leverage spot to reset.
But in the short-term, you are not saving these guys for anything, and there's a day off tomorrow. Hoffman and Alvarado will pitch today if they have to (Hoffman is probably more of a last out of the inning match-up move but Alvarado has thrown fewer pitches over the last two days than Hoffman did just yesterday). Seranthony and Strahm will be available. Otherwise, it might be a moment to challenge Lorenzen to step up for an inning. And Ranger will definitely be in the pen (and if not tonight, don't be surprised if history repeats and he comes out for the save in Game 6 if it's the clincher).
Let's just hope we're not watching Wheeler lose the game in the seventh inning because Thomson stayed with him too long.
All that really matters in the meantime is who wins the starting pitcher battle. If Wheeler isn't the better one the bullpen issues probably won't matter.