New S6 Masteries Make the Game Unbalanced

These new Pre-season Masteries are ridiculous. Basically anyone that builds crit is a monster while other champions become almost unplayable due to new Masteries not working well with them. Throw experimenting out the window. You either adhere to these Masteries or you lose. You are now almost REQUIRED to build crit on your adc, with Warlord's Bloodlust, and have a healing/shields support with Windspeaker's Blessing. You will win unless the enemy team does the exact same thing. It makes all of the champions completely unbalanced and 1v1s that were potentially even fights before become brutal massacres. I can't play a lot of my favorite champions simply because the masteries don't work well enough with them unless I build them completely differently, and certain parts of the mastery tree make it to where you have to pick one or the other to get to the lower ones, but both of the options are sometimes horrible for the champion (I.E. Building a Tanky Shen and having to choose between Merciless and Meditation in order to get to Windspeaker's Blessing). We just got destroyed in an earlier game and I full-heartedly believe it's because of the new masteries and item changes.