I think many were taken off by the first mechanic to work under the car, they are a pain to work around.
FWIW they cleanup very nicely with a pressure washer, mine looked worse than yours and this is what it looks like 3 years later sitting in my garage.

If you don't mind me asking, How were they held on? Screws or rivets?



If it is rivets, is this the right type of rivet?
If it is I have plenty I could send you some.