Moderate success! After sitting in the growlers for a couple weeks (with airlocks) with no sign of activity, I had a couple people taste test with me and it didn't taste too bad Still not super appley, but certainly improving. I think not carbonating it also detracted from the flavor a bit, but I'm not bottling this batch. Also, the growler that I left the bacteria and sediment in smells fine too and shows no sign of activity, so it may be just fine after all.
Is there any harm to aging the cider in the fridge in the growlers? Or rather, will it continue to age in the fridge the same as if it weren't?
I think I will still try jacking one of the growlers as well, especially since I didn't carbonate.
Thanks again everyone for all your help and feedback! I look forward to a more successful larger batch this fall