but you haven't addressed JR's complaint in this scenario. b/c 5 of the devs who can commit (2 of which can write) are part of Blockstream, they have a financial incentive to perhaps surreptitiously dissuade thru fillibuster any SC innovations that might ported to Bitcoin Core while continuing to nurture the SC.
I agree with the principle of it, but in practice it would be hard to increase the amount of fillibustering.
EDIT: To be fair over at least the past six months the conflict has already existed in secret, so perhaps one could argue that that the status quo is not a good baseline. But this state of things goes back for years really.