Hope that fixes it!

I did three drain / flushes on my 04 4.4i in summer 2019 with Valvoline MaxLife and the transmission is shifting as good as new. I've only put on 1.5k miles or less per year since then though.

I was getting the Trans Prog Failsafe in cold weather before that because the fluid was low from leaking from the mechatronic sleeve (which was replaced, probably could have just replaced the o-rings since they were flattened from age).

EDIT: And just to make sure, you lifted so that the pan was level to the ground, correct? I used a level on the bumpers and the sideboards to make sure mine was. Probably, obvious to anyone doing this procedure, but verifying