Mining is a process of value creation, which is something governments want to subject to KYC and all that nonsense too. This is also why Ebay and PayPal are quite harsh on people selling mining equipment. It's super silly if you think about it, but this is how governments think they can somewhat control this ecosystem.
Considering that you can only mine Bitcoin with specialized hardware, it's easy for governments to enforce these measures, while it's way harder to do it with businesses selling GPU's, because you can't subject every buyer of one single unit to go through this nonsense. It however wouldn't surprise me if eventually we'll see the same happen to bulk GPU purchases. We haven't seen the worst side of regulations yet.