I think so too, that's the most you got so far. Along with the rest evidence you have, I believe it's pretty strong.
For my case, we submitted all statements since we had the joint account opened after married in 2023....so that's a lot lol
I think to have affidavits along with other strong evidence is always the safest option. Our packet is 337 pages...just want to avoid any possiblity of RFE as much as we can