I think you'll find the aircraft/engine combination is not yet approved for EASA commercial SET-OPS in IMC. Believe the only ones that are, are the Cessna Caravan, the Pilatus PC-XII and the TBM-700/800/850. Stand to be corrected on that though?
It's the combination of the PT6 engine and a specific airframe type that's relevant - the PT6 engine is well-proven and the mean time between in-flight failure stats tick the EASA boxes, but each new airframe/engine combination will have to be evaluated and accumulate a pile of hours before being approved for commercial SET-OPS in IMC (in Europe).
That's why something like the new Cessna Denali with both a new, unproven airframe and a new unproven engine, will have to accumulate years of experience and hours before likely to be approved for commercial use in Europe.