The Ford splash shields are made of a felt like material and certainly won’t last the life of the vehicle. I replaced the shield on my 2014 two years ago with an aftermarket one and it already has 2 of the screw holes rounded out. It would have been easy for Ford to add an ‘access panel’ like Mazda so that the whole cover doesn’t have to be removed….which would add to the longevity of the cover.
My focus had one with an oil access panel. I didn't think the felt material would hold up but 6 years of ownership and it was still perfectly good. The Evo on the other hand had a 3-piece plastic one with access door and that fell apart really easily since the tray was held on 3 sides to the other pieces, so if one came loose, they all did!