Ok man, I just want to explain some facts to you:
Devs really don’t caring about tb, tb isn’t from jartex already (origin: MGZ). They just treat tb like a stepchild, they never make logical decisions . They are only ruining tb more and more. About maps: In before, we had some original maps like cliffs, pirates etc. But then, they added frost, kingdom and dino. Then, they removed it because of some reasons (not being compatitable with the bridge’s itself etc.) and a few months later, most of tb players wanted new maps. But due to our devs being too lazy (or map builders, every of them are same), they wanted to fix the problems of these 3 maps (frost, kingdom and dino), just like adding some things as you said (underbridge etc.). Why they are doing this? Because they don’t really want to work on the bridge, they just want to hold tb players in their server and trying to make them happy with minimum effort. They will never work properly for tb (if this situation will be going like this), so, don't keep your expectations high, things like this are normal.
Have a good day!
Kind Regards,
~ Poldotka