To be honest, my interpretation of the hivemind proposal was that it was not too different from how you started being able to sign in with facebook on other websites. This seems the goal, and did we not already establish that this was done mostly for the purposes of data harvesting? So why, just because we are on a different platform, who words a very similar proposal in an obfuscated manner, do we accept it as beneficial for us so willingly?
As for the EOS alternative, I don't doubt it will be better in one way or another. But, I suspect the cost of using the platform will be higher - again; in one way or another.