Absolutely that. A number of the Tory grandees have indeed spoken out against the current regime...but they receive (or seek, perhaps understandably?) little air time.
I would say "she should be shot" (or similar) could be promotion of violence...but yes, set up a due diligence committee of Tory MPs to discuss that, Mr Gove.
As has been said before, if the donation had been only 500 squids it would already have been returned.
No doubt Gove's due diligence...