But seeing as we can't agree here what is a forward pass it is hardly a strong argument to stop the use of one phrase, by the same logic do we need to stop using forward pass?
There is no real alternative to "forward pass". "Throw forward" is technically more correct but does not deal with the disagreement.
There is no need to say "double movement" when you could more sensibly say "illegal movement". The first invites the questions "what was the first movement?", and the riposte is often that the movement complained of was indeed the first one. It also suggests that rolling slightly to get the ball out from under you is the first movement so that placing it is then a second and therefore illegal - which it isn't.
At least if you say "illegal movement", and somebody says "why" you can give a sensible answer. It is not pre-supposed in an inaccurate description.