I think it's a great picture to include. But, it's not required by FHA. Looks like it's your choice. Do you want to comply with your clients wishes ? Or do you want to "die on this hill"?
Looks to me like the unit is being supported by automotive jack stands.
I don't believe I'd remove the pictures. I would assume also that the lender will require an engineer's certification on the foundation: that, however, does not relieve the appraiser of the reponsibility to accurately describe the foundation that exists - which the picture does pretty darn well.
Maybe the MB is in another time zone like Mr LeQuire and myself and think those camper jack stands look suspect. If someone asks me to remove a picture, I ask that they put their reasons in writing, and then I will consider. Their request usually goes away.
Edit to add, I have never removed a picture.![]()