Yeah it's funny because while I would agree the communists have shown adaptability (hey we still kinda vote in HK and they just today told us to "cast our sacred ballot", impressive gymnastics), I think meritocracy and legitimacy need more work.
Meritocracy is difficult because it means you d have to tolerate a certain amount of conflict from the competent bottom towards the rotting top like everything and that's difficult when you're built so top down as the communist party. They tend to prioritize loyalty to truth and just like a Church, suffer dire consequence when the odd loyal corrupt is discovered.
As for legitimacy, I really dont see it until an alternative, even virtual like in the US, is presented and a choice made. We would have very diff problems with Beijing in HK if they had a believable legitimacy: we d have a lot more people defending the country against the localists instead of what we have now: localists, people defending the country against the localists AND the communists, and people defending the communists OVER the country.
Or to give a US example people in HN could understand: if you have separatists in Texas asking why they even need a federation, people wouldnt pinpoint the democrats or the republicans as stealing the true meaning of the country and join the texan localists in trying to split away to find something more legitimate. Which is what split families in HK currently.