-The permissions that pushbullet needed originally where a bit overaching.
-We never knew which was the offending one.
-Reading the original article it crossed my mind that some of the permissions the extension asked could be used for marketing (I'm not implying that they were used for that), and maybe google just didn't wanted extension developers to have a cut on that.
-I really don't like how this marketplaces have made big companies gatekeepers for market share.