Basically the 2014 Barbarian, Ranger, Sorcerer, and Champion Fighter are so bad with XGTE and TCOE, even the bad playtest versions are better.I think that has to do with what another poster - I think it might have been @mamba - was saying against the 70% playtest threshold. The UAs are actually getting scored, not in a vaccuum, or an absolute scale, but in how they compare to the 2014 version. This doesn't mean that 83% of people like this ranger as their "ideal ranger" - it just means that they like it that much better than the 2014 one.
Well the playtest Barbarian Berserker is alright.
Edit: Emphasis