My experience with AWS has been exactly this. I had a Cognito question/issue on IOS that I posted to stack-overflow and got a quick response from an engineer at Amazon. Also I posted a support ticket (zero paid support) to increase my sns API calls limit (which didn't end up being required because I was doing it wrong) and they got back to me over a few days to a week.
On the other hand, Google takes my Android app off the play store with next to zero details on the reason why and I have next to zero methods to contact them. The only way I was able to get my app back was to remove features via trial and error to determine what part was infringing. Why would i partner with Google again for hosting?
You are comparing 2 very different products. Now if you were comparing play store support to Apple App Store support they would be more in line with each other. Or Googles cloud offerings to AWS.
Play is a low margin business per "customer" compared to cloud. This has direct impact on the type of support you can expect.
On the other hand, Google takes my Android app off the play store with next to zero details on the reason why and I have next to zero methods to contact them. The only way I was able to get my app back was to remove features via trial and error to determine what part was infringing. Why would i partner with Google again for hosting?