I've worked with some of these responsible recyclers before. Everyone knows the deal.
If you want IT asset disposition, it'll nominally cost you -- for pickup and processing, and optional value-adds like secure data destruction certificates. If the assets have remarket value, that can begin to subsidize the cost, easily zeroing it out, or even returning profit to the IT department. Recyclers are happy to pay IT departments to pick up their old Apple equipment -- and they know to ask ahead of time, "are these activation locked?"
These recyclers often have vertical integration on the refurbishing side, running an Amazon eCommerce department so they can directly capture that remarket value. And once they've got that going, their bottleneck to growth is how much material they can bring in -- which is never enough.
So the recyclers and refurbishers invariably need to buy material from other recyclers. There's an entire economy around selling pallet-fulls of used, minimally-inspected or completely "as is", Apple and PC equipment. Specialized invite-only communities exist for selling this material in bulk, with lots of overseas actors in on the game. Every R2 recycler is involved here, along with lots of actors from India and China in particular.
Having seen inside that sausage factory, fraud and theft is a legitimate problem. There's more than a fair share of "don't ask questions". More than a fair share of "yup we're definitely R2 certified, wink wink". More than a fair share of wining and dining the R2 auditors to get that certificate under the table in the first place.
I'm gonna go with the GP comment here -- the system is working as intended. Industrialized theft of this sort is much more eminently solvable through technological means than through overstretched law enforcement, especially when a non-negligible amount of material comes from overseas.
It's on the IT departments to figure out if they have enough time to activation-unlock their assets before disposition. Do they want to pay the recycler to pick up all that material, or do they want to sell the material and pad their budget?
A quick look at the Jamf documentation suggests it's pretty easy to mass unlock these devices, so I'm not buying that it's that much of a strain.