Over dissected pocket ? Mild symmastia ? What are my options when my surgeon won't use alloderm or other products. (photos)

I have 420cc inspira ssx implants. I had my 2nd revision 4 weeks ago to fix bottoming out and my surgeon put sutures along my cleavage line to help with my skin lifting off my sternum (said it wasnt symmastia). Ive been in a thong bra and push-up bra while healing and my cleavage is still looks like a uniboob in bras. surgeon says it's fine but i can't help find my cleavage photos upsetting.I know I'm early post op.Why cant my surgeon see what I see or is he right ? I'm tired of repeating myself