I can't imagine why; the current state is phenomenal so I'm having a hard time picturing the game being even better in a previous version. Obviously the updates have been working out. The features for A21 are looking good too; even the removal of glass bottles bit. One less item in my inventory.
I picked up this game about a week ago; saw it pop up on steam a few times under recommendations so I took a peek and tried it out, and holy @%$# I'm glad I did.
I've now got a third party server hosted for my friends that I got into the game as well. We're all blown away by this gem of a game...