the new tank mounts

[bokchoykn]

snip

This isn't what the OP is complaining about. The OP wants the mount but does not want to do 8-man content. He thinks the mount should be obtainable through 4-man content. You're arguing for something different. You want the achievement to be applied retroactively.

I would've liked the Bear and Lion mount progress to be applied retroactively too, but it wasn't. I could honestly see why. They were trying to encourage tanks to be more active and reward them for doing it. If they rewarded everyone for past progress, the plan would be less effective.

Yoshi-P says a lot of things, some of which I don't always take at face value. He's answering questions on the spot in an interview, not given the opportunity to consult with his team. People analyze and dissect his words and take things out of context, and then get upset when the game contradicts what he said.

Ehhhh, the lack of tanks is more prominent pre-endgame from my experience

Probably, but I guess they didn't want this trend to continue into end-game.