A guard crush is still a free kill if you do it by a ring edge or do it when they're at the right amount of health. Guard crushes are also easier to come by in SCVI. How about that's your kill condition rather than simply building two meters? Consistent long term planning, stage positioning, and timing of guard crushes -- now that is the mark of a "different Level Player" ...Only valid reason CF shouldn't be in is the Free meter system... other than that, any other complaints just means your offence sucks or your defence is horrible...
If you can pull off [2 Meters & GC=CF] its classifies you as a different Level Player.
At High Level it wont really be possible to pull off.
Even if its not a CF, Being able to GC and Burn 2Meter for higher CE damage is a good idea.