You are free to have your opinion, but if you want to address the developers then you are doing it in the wrong place. This is a user forum, the only people that will see your comment is other users. If you want to talk to the developers then you should contact them directly here https://www.advancedcustomfields.com/contact/
There are plenty of us users that are quite happy with what ACF does. If there wasn’t a market for what it does then ACF would change or disappear.