I can tell you haven't played british at all. Without brace your 400mp investment (and only form of indirect besides doctrinal mattress) would be killed way too easily.
Don't forget base arty? Ya know, the free howies in your base? 400mp investment lol. How about the cost of units that it takes to attempt to destroy it? WAY more than 400mp...
I've played Brits in 2v2, they're incredibly easy, extremely flexible, have probably the best healing in the game, and the best all around tanks.