I disagree with that first part. People don't just buy a product out of spite. MS had enough issues and continued to have issues this gen to have people decide to not buy an XB. Add in them putting their games on PC might have kept that number even lower, but a conversation for another day.
They are trying to turn that around by all the teams they bought in preparation for next gen to not have what happened this gen, happen next gen. So they had people not buy XONE more based on what MS did vs what Sony didn't do.
I have nothing against Nintendo being the family friendly choice, simply that I agree that they have maintained that same image, idea, philosophy etc compared to MS which fights to get new customers. Nintendo seems more concerned with keeping that then actually changing really anything. Even adding more teams won't suddenly hurt those that do like Mario, Zelda etc anymore then MS adding more teams would hurt Halo or Gears or something.
SO we can have Nintendo buy up some teams and they still make Mario, Zelda, Animal Crossing etc and then lets say buy Platinum and have them do some M Rated stuff or something. I agree they are family friendly as that seems to be what many believe, I simply believe they don't offer as wide as a range as Sony and now MS.
You can buy a XB and play Halo, Gears and then Ori or Lucky Tales. You can buy a PS and play Ratchet and Clank, Knack, Dreams and then play The Last Of Us or God Of War or Killzone.
You'd be hard pressed to find Nintendo actually making a new IP that was M rated and backing it no different then their other IP. For better or for worse. Its something they just don't do often.