Following the link on that page to the "translated" version of the new EULA, their reasoning seems to still be "we don’t want our players to be exploited or to have a frustrating time unless they pay." [0] I find a lot of things wrong with this mentality, mostly in that it assumes that the servers that charge for gameplay have some kind of monopoly over the servers. If you don't want to pay for gameplay, just visit another server. You don't have to put up with them. Heck, if you really wanted to you could host your own. The bottom line is you don't need to pay anyone, they're not exploiting you. If you're getting frustrated because they're charging you then that's your own dumb fault for visiting that server and putting up with it. If you want to pay, go ahead, support the server hosts. All of this is under the false assumption that people are being forced into paying, which simply isn't true.

[0] https://mojang.com/2014/06/lets-talk-server-monetisation/