This very thought process, and with Google owning Motorola (nexus x, anyone?) is why I keep saying that Samsung and all the other handset manufacturers should be actively looking at and hedging on some other tech besides Android. At some point, Google is going to become very hostile to those hardware partners and it won't be pretty if Samsung et al don't have an alternative strategy pretty well baked.
IMO, Ubuntu is the thing they should be looking at. Closest to Android, most mature, easiest to integrate into current culture and biggest partner for them.