Is this a bug/mistake?

[Jason Petho]

I think what the "team" did was to take away the designer's input and infused themselves into another part of the game, to micro manage things such as bridge type.
It seems an artificial solution.

What the team did was add another feature to the game. A feature that does not affect any of the original designers scenarios, as a special engineer is required to produce a bridge capable of carrying vehicles.

Jason Petho