Dera
The statistics are very clear: employed within demonstrated limits, there have been no fatalities amongst pilots using the chute. By contrast there have been several fatal accidents amongst Cirrus pilots who tried to stretch glides or make off airport landings.
I know that MOST off airport landings are successful. But not all of them e.g.
http://www.fomento.gob.es/NR/rdonlyr..._042_A_ENG.pdf
Summary: DA20, engine failure, off airport PFL, apparently experienced instructor, 300 hours in type, aircraft with much lower stall speed than a Cirrus, two people killed. It's by no means the only example.
By contrast, as set out above, NO fatalities in within parameters CAPS deployments.
Your point about revoking licences is interesting.
There are about 5500 Cirrus flying and some people buying them, especially second hand, don't get proper transition training. They are, however, IMHO, a minority. Equally, there are bad pilots flying other types as well but that doesn't mean all pilots of those types are stupid or incompetent either.
Cirrus pilots have no monopoly on incompetence or stupidity.
I would suggest, however, that the penalty for stupidity or incompetence should not be death for the pilot and even less so for any passengers on board.
At least the pilots you criticise would be around to have their licence revoked if that was appropriate. There's not much point in revoking the licence of someone who is dead.....