Planet for a planet is working fine(doesn't trigger if you scuttled a planet though, which I doubt it's supposed to).

Assimilated Populace has been broken ever since the patch that was supposed to increase it's duration(it worked before that).

Planet for a Planet should be working atm.  That said the infocard is wrong, planet for a planet gives bonus damage and attack range, not attack rate.

The planet for a planet buff on the infocard reads:

"+25% damage

+10% weapons range"

Or something of the like.