You can't regulate what you don't understand
Harmonization is the name of the game for makers of mobile devices and base stations, so nations that fail to assign the upper 6 GHz band will find themselves with limited options.
There is no current need to mandate authentication or blacklisting. Authentication is unnecessary and blacklists are already common
Spectrum policy needs to be guided by the realities of network engineering rather than the desires of network incumbents to protect legacy business models from competition from wireless upstarts. Spectrum policy need not be a team sport.