I am personally struggling to see the downside here...
If the owner/pilot is content with the considerable extra cost and weight of the airframe parachute system, and, the presence of that system does not cause over confidence, and resulting poor decision making ('cause the 'chute is there, just in case), than there probably is little downside.
But, I think that both of those factors have some bearing on the choice to acquire/operate that system or not....