If Moffat has an infringement case, he should call his lawyers. If not, his comments are pointless, and he should stfu. He's just trying to get some free PR by inventing a controversy. The stuff about the coat and scarf is just desperate and sad.
Most likely, this pilot will never go to series. CBS has a lot of pilots and few available slots. (Given their ongoing success, this is the case every year.) Pilots have a much easier time on ABC and especially NBC.
So clearly they are trying to ride Sherlock's coat tails.
Sherlock has no coattails to ride. Do you honestly think CBS viewers have even heard
of it? Trust me, Americans know only two types of TV: American TV and Downton Abbey