Also an amateur linguist, and you could be right, the pattern is similar to AAVE. Somewhat related, I was recently listening to a ton of YouTube videos that go through the differences in pronunciation of German spoken by those in Bavaria and those elsewhere, and the dropping of certain consonant sounds in “Bavarian German” seems familiar.
Note: not fluent yet, please if you speak German correct me if my depiction is not accurate. “Bavarian German” does seem to drop a lot of the condiment sounds, and also seems to drift closer to Latin in some ways, but I haven’t had time to actually look into that.