True in some ways, but not in others and a surprising number of people wash out of Part 135 Caravan training, some with ample twin turbine PIC already in hand. Many of the 135 Caravan companies require 1500+ hours because they see too many washouts with less hours. Basic IFR flying is similar to SE pistons, much of the same avionics are used. But the additional complexity of some Caravan systems plus the much higher gross weight plus the pressure of scheduled flying in bad weather/places/times make it a pretty challenging airplane the way it is actually used in the field. The number of Caravan crashes over the years bears this out as well as the hiring minimums of most companies that use it. It isn't any one thing, just a lot of lesser things combined. Be that as it may the Caravan is one of the easiest airplanes out there for professional flying and pilots generally love it.