I'll be honest I don't know for sure, but I highly doubt Google would intentionally hurt themselves by ruining their search results. Also,
>Google+ requirement is a cancer eating their products from the inside.
I do agree it's B.S. but using 4 different computers on a regular basis and being a student I find it more useful to use their products than not. Especially, the syncing options so basically my drive/chrome holds everything between all my computers. This would be impossible without having some way to link them (via email say, well they use Google+ to try and make more money like every company NEEDS to do to survive). Therefore I say I am alright with their changes because Bing and DuckDuckGo have significantly reduced capacities (to the point of usability is fair at best)