Global stats aren’t really a good way to prove a point, m8. Just look at the M44: it’s one of the best low-tier tanks, yet only one nation can barely get a 50% K/D with it…
Could you elaborate on your point, instead of just saying “X is bad”? Make an argument, tell us how you interpret the data and why you believe your interpretation is correct.
Just looking at the screenshots you’ve posted, it looks to me like the BMD is doing alright. You can’t just say “looking at the data, we all see X performs the worst.” You need to explain the data and your conclusion. Because to me it looks like it’s doing alright.