Marketing doesn't forecast demand. Sales and inventory planning does.
For all we know, they are satisfied with their sales plan as they hit their sales targets. It could also be constrained due to supplier related issues.
It is your responsibility to read and understand the contract before you sign it. If you didn't like the deal, you shouldn't have signed it, simple as that.
Again, the investment would have happened regardless. Do you think these companies only compete in the American market? They have to comply with the regulations in other markets as well....