My few stays at RC did result in mixed upgrade results.
RC Nanjing upgraded me to their 1 bedroom suite, RC HK only upgraded me to their Victoria Harbour view room, RC Mega Kuningan provide zero upgrade, and RC Pacific Place attempted to put me into all type of suites they have on my multiple stays there
Honestly, I believe the latest t&c changes will change nothing for our experience.
Generous hotels will continue to upgrade the elites while stingy one will continue to do so.