Only Wargaming could make the experience of getting a free tank feel like a an attempt to extort money out of players.
Problem 1: Crew is automatically retrained to Badger, leaving FV215b crew-less.
This means that you have to train a full crew for the FV215b, and unless you want it to totally suck you're going to have to spend a pile of gold for that! Even then they won't have any perks, so you'll need to have a premium account and use a gob of crew xp boosters to get them in shape.
Problem 2: New Badger crewman is only trained to 100%, so no BIA.
Again, they want us to buy premium and crew xp boosters.
Problem 3: Retraining reduced transferred Badger crew's skill level - in my case from 3 perks to 2 available perks.
Yet again, a ploy to get us to buy premium and crew xp boosters.
The whole process of WG goading players into racing for the FV215b before the update felt like a scheme to drain our wallets (Buy that premium time, buy those boosters!), this crew transfer garbage is where they've emptied our wallets and are shaking us by the ankles in the hopes that our last pennies will fall out. Way to go WG, you made something that should have been awesome seem shady and sordid.