This isn't a fair criticism. Amazon is in the Cloud Services business and has a retail business on the side. Look at where their profits are: 66% of Amazon's profits last quarter are from its cloud biz.

It's not a matter of "trust" - I don't trust the plumber to fix my toilet more than the rando I can find on Craigslist per se, but I do have the expectation that he intends to continue plumber-ing and will be around to stand by his work in three months time.

AWS is the cash cow of amazon for now. They get their safest margins there and revenue to match.

After ten years of AWS, and with the vast operating income AWS is now providing Amazon - yep.