Has nothing to do with killing B2B products. But I share your frustration and distrust in them for those two changes.
With the Google Maps API price change they demonstrated that they are very capable & willing of abusing their market position with shocking price hikes and with the GKE structural price change that they are no longer interested in the trust & business from small & medium size companies and unless you are enterprise size you can expect unpleasant price changes going forward.