At the end of the article (and in the linked article), the author says that Flex is too immature for production use, but also says that GAE Standard is practica

At the end of the article (and in the linked article), the author says that Flex is too immature for production use, but also says that GAE Standard is practically on autopilot and not recommended for new projects. So it seems that the author doesn't recommend starting new production projects on GAE at all. Has this been others' experience? Given Google's record with other products, I'm particularly worried Google might discontinue or stop improving GAE. Does Google provide any offical reassurance that GAE is a high-priority product that will be quickly improved and not put on autopilot? If so, do their promises seem to match the reality observed by the author for GAE standard? quote from the end of the article: " It feels like they only invest the bare minimum anymore. Actually, I have had this feeling for the last two years...It is infuriating if there are known issues but they are not fixed. It is depressing to receive so little information on where the platform is heading. You feel trapped. ... the 'old' App Engine is on its way out. I do not think it is a good idea to start new projects on it anymore. If App Engine Flexible Environment on the other hand can actually fix its predecessor's major issues, it might become a very intriguing platform to develop apps on. "