Going into details about the problems a platform has, and then sweeping everyone else along is a bit weak. I've used Heroku enough (not too much though), to know that it doesn't suffer from most (any?) of the listed issues.
Sweeping everyone else under the same rug (or attempting to) just feels like a "we're complaining about your Azure platform's shortcomings, but hey, we can still be friends, see, we'll try to throw everyone else under the bus, too".