There is good evidence that those opposing it are in the minority(Even many "Big Blockers" support segwit - Gavin/Garzik, ect...). Miners controlling most hashpower are only a handful of people and one miner Bitmain may control over 50% . Thus this proposal would not be about getting a lower level of consensus to activate a SF but an accurate and high level of 95% of the community. 95% hashpower doesn't necessarily mean 95% economic user support.