I don’t know who told you that, but it seems like simple sensationalism.
Do you think that the issur is worse because it is technichally an issur every second instead of one big issur?
Do you think G-d is playing “Gotcha” and finds ways to multiply your aveiros?
So I don’t know if it is one issur or multiple, but it really makes no difference to me.
You are not allowed to do it, and it is a serious issur; that is enough for me.