I would risk it with 75% because:
1) I don't trust core to put the interests of
the community before Blockstream's interests
and
2) I don't necessarily agree with their
vision of how to scale Bitcoin. I think
main chain scaling should be the priority
as envisioned by Satoshi.
and
3) I don't think they should be in
charge any longer.
I'm not looking to persuade anyone of
my opinion, just stating it for the record.
OK, so this isn't principally about 1.6-2.5MB vs 2MB or HF vs SF but a change in governance?
You understand that the majority of people , even if they disagree with the exact details of cores scaling proposal still want the Core devs to contribute to contribute their valuable code and insights? This included almost all miners.
So if this is the case there is no point in reconciliation or discussions. Good luck with your governance coup! I can tell you one thing ... if 45 devs get replaced by 5 devs because of some backend deals with payment processors and miners, I definitely will be on the other side of that fork. It is absolutely ridiculous to complain about not enough development distribution and than want to fire 45 devs and replace them with 5.