How about community enforcement? If enough of us (especially if we got all the miners onboard) refuse to do business in certain ways or certain time frames then there's no product to buy during those windows.
crypto exchanges should not be relying on banking infrastructure to dictate when they should trade. think of crypto as a whole country. you would never ask a whole country to shut its shops and go home for the weekend purely because it cant get hold of a different countries money.
people in the community should have the freedom to continue trading with the currency they already have. and crypto shops like memory dealers, cupcakes and alpaca socks don't want to have to wait to trade their crypto. (meaning they wont take any sales at the weekend). they want and rely on 24/7 service, and so they should.
in england a few decades ago all shops closed on a bank holiday days as they knew the banks would not be open to take their daily profits. Now shops are going against this and continuing to do business, because they are realising they dont have to rely on banks on a daily bases.
instead of demanding a revolt simply because some people cant get money in on a saturday..you should BUDGET your money to cover the weekend.