That’s not as clear cut as your post may make it seem. Some users (me, for example) are more inclined to use a hosted service of some open source software than of some proprietary piece. Because that gives me a migration option if the providers service no longer fits my needs. For example, I’m paying four digits a month for some hosted Postgres database.
Misses the point. The marketing copy there is to bamboozle the uninformed into opening their wallets. If you are better informed, you already know that AWS plagiars pretty much all it's services from open-source. A smaller player catering to a tech audience might add open source to its bullet points as some sort of virtue signalling, but that's no benefit to the established megalith that is AWS.
