Unfortunately, you're right. The recent changes are indeed cosmetic at best. (Although the last minute conversion one is actually pretty major in some ways) And again, you're right, some of the major sticking points (blood, shunning, two witnesses etc.) represent too much of a change; policies like those have done so much damage to lives over the years that to jettison them at any time would be unworkable. There would be such incredible legal ramifications that it would be likely that the organisation could survive.
I'd love to see a government or two go after them over the blood policy. It's not just medical "advice": they force compliance on pain of death (disfellowshipment) and enforce it (HLC). They're practicing medicine without a licence.