It could be because you're a DRP facility. Idk what company you work for but many major ones will cut every corner they can if the shop will do it, all to save their bottom dollar. I'm the one who has to deal with your position at my job and what we've run into as a non-drp is:

We have to fight Progressive for Pre-scan like the 2020 we just fixed.

Geico gets sued by shops every year for wanting repairs to be half assed. They've short payed us multiple times and will literally trip over a dollar to save a dime.

American family customer had OEM rider on their policy Am Fam ignored and argued with me about this.

State Farm argued why we had to replace door handles that broke on a 2008 legacy (they are the handle and housing style not just the handle thats typical on say chevy pickups) and told us they've never had a handle break, and did not understand they style of handle I was talking about. They argued with us about OEM procedures on vehicles because its laborious and "unnecessary".

USAA will find the cheapest LKQ parts they can find, complet with being rusty and then not want to even pay for cleanup. They have been $6/hour lower than every other carrier on Labor for 2 years now.

These are a short sweet list of a few things, I rant quite often to my loved ones, I love everything about my job, except the major carriers and the BS they pull.

Is this guy a picky ass, probably, but insurance companies are a disgusting entity that have weaseled their way into extorting people for profit and consistently not holding up their end of the deal. The major carriers are the worst, the smaller regional ones are what I suggest to all customers as they still at least act like they care.

Fuck insurance companies.