Football (sorry, Soccer) is not the kind of sport which enables high scores, it never was. Actually, in the past, goals seemed to occur more often, but that was mostly because of the huge discrepancies between the opposing teams.

I think it would be much more easier to embrace what Rugby does, and get a referee analyzing TV footage to help the field referees when doubts arise, than changing the one thing that makes soccer what it is, the act of scoring a goal and what it represents, reducing it to nothing, turning Soccer into one of those sports where in each attack there is a point taken for the attacking team, being the game decided by those few attacks that weren't successful.