Not necessarily. In a competitive market, Google would need to fight to win over developers, otherwise their store will be lacking apps, and therefore customers.
A noisy post like OPs would actually make Google shit themselves if they didn’t have an app store monopoly. Even if it’s a single dev out of millions, the bad press would be much more costly than making things right.
Only if enough consumers are affected.
Situations like the OP happen, but they're exceptionally rare. They just make a lot of noise.