are you an engineer?
one of my customers is an engineer at ford and was involved in the front section, he has told me that even though it is plastic it is structural. Many cars these days use composite materials in the structural strength of the cars being built, it not heavy steel so much these days, believe it or not, the windscreen in most cars adds to the structural strength of the roof.
Once that bar has been cut from the support, it is a panel shop job to replace the radiator support panel if a legit rwc is required, plus any other repairs from "trimming" the metal bars