The TBW one I believe is a bigger panel and so may be better for you...
I think it might even cover over the area where the plastics got ripped away.
PS. even if it does not cover that, probably not a big deal... not worth replacing the whole plastics... my car detailer rust guy said those plastics just keep heat and moisture in anyway, which only contributes to sub-frame rust. You're in Texas so I assume you have a pretty car friendly climate