If Blitz research had a donate button that sort of helped ease the passage of tricky code/general improvements like this, then I'm sure it'd get used.
I agree, this would be nice. Not only would it give BRL a small extra income stream, it would also give them a clear idea of people's priorities. People might say they really want all kinds of things, but when it comes to reaching for their wallet, they'll think twice, and pick the things they really need most.