I would argue the opposite. You think controlling a Throttle, Mixture and Prop has less risk then a single stick operation (okay, there might be a hi/low speed lever depending on turbine design) in terms of pilot proficiency???
Here's the kicker. It seems that very few pilots get themselves into serious trouble because of those additional levers. Saying that those additional levers are a problem is pretty sketchy. I'd argue that the fuel tank selector knob causes far more problems.

Note: I say "seems" because we don't have good evidence to say conclusively one way or the other because of the lack of FDRs in GA aircraft.


Also, every turboprop I have ever flown in (TBM 850 and numerous twins) have had three (or more) levers (condition, fuel and throttle) just like a recip. Most of them also have their flap control there....


Selling pilots on turbine power would be easy, training them to fly a turbine would be even easier.
The issue I was getting at with a turbine is the lack of "instant" response like you get with a recip. You have to wait a couple to a few seconds to "spool" it up (at least in the larger engines from what I have been told; I'm not a turbine pilot yet myself so I am just repeating what I was told) before you get the full response. Given how many of us manage to get ourselves into the side of the power curve where we really shouldn't be, it would seem that adding something into the mix that makes recovering from that even less likely (because of the slight delay) isn't necessarily a good thing. However, I think it's a minimal risk and inattentive pilots will be inattentive regardless of what they are flying.