I don’t see anything serious going on either. I do see a bit of stretch or “dirtyness” in the white line, and I would like to see more of s bevel or “mustang roll” on the walls. This will take some of the pressure off the outer wall. My ideal foot is smooth and hard so there is no change of texture over the white line.
OP what qualifications does this hoof care professional have? Is he a certified farrier, an educated barefoot trimmer, or a selftaught trimmer?
I ask because there are many trimmers without any real training who tend to go around seeing imaginary problems that only they can see and fix. Often it’s imaginary thrush, for Instance. I m never sure if they are honestly mistsken or bullshitting to scare the client away from the last farrier.
Also if your trimmer is saying the horse has a thin sole, and your vet has xrays, ask your vet if this is true.