I suppose the thing to do would be have a drive up and see.
It should be possible to hack up the grass alongside to the route to see for yourself how steep the rock really is.
I think the problem, certainly on the Matterhorn ridge, will be the fact it is so sustained, so any slip will result in a tumble down the whole thing. There are no ledges, gulleys and blocky bits that break up the scrambles that we are used to, as in Wales, etc.
Roping up would certainly be the order of the day.
I seem to remember reading on one of the Internet sites that the ridge is 'rather airy' - this may well be an understatement!
On the Elbow Ridge however, you can apparently just step off the scramble to the side if things are getting a bit much.