Many of the older players are salty/mad because they don't understand a simple concept.
It is normal to lose interest in something over time.
Even when you take pauses from time to time and the devs try to change it up every so often, in it's heart this is still the same game and the above stated is absolutely normal.
So instead of letting it go they are overly critical trying to find flaws everywhere and since it's anyways pretty meta to bash the big companys... yeah.