Upper control arm

Hey there, I recently drove my 73 dart sport to the alignment shop and most stuff is solid and going well. However, they are saying the upper control arms should be replaced with adjustable ones because they have maxed out the alignment on them, but it’s still in the “red zone”. With the adjustable control arms they say they can properly align the camber. Thoughts on this? If they aren’t trying to pull one on me, how do you think this happened? These are new upper control arms but could they be bent or what else could cause this?

Thanks.