That is something I normally do as well. There are times however when I need that dude painted and do not want to wait for the rattle can to dry so this works really well for me.
We do this underneath baseboards in houses that have tile floors in them. Lay down the paper on the tile before installing the base and later spray away. Then tear out and either use color match caulking or grout to fill in the minor gaps where the grout joints are.
