Generalisation
Looking from the other side.
Most / many / several sim instructors have never been in the real aircraft, and not flown it.
They teach from the book, and not from experience.
Back to the original question: A good instructor, with regular flying on type, and in the real world.. (not circuits at SAV), should be a good
asset for the company and the cockpit. The benefits far outweigh the disadvantages.
The ability to know exactly where in the POH, Performance manuals to find the once per five year procedures is a good asset.
Cat 2, and EFTO every week....total electrics fail every month....( in SIM).
Now for the sales pitch: 2500 hours on G450/G550, and 600 hrs in the sim.
I alternate between SIM and AC, I hope all benefit... I learn as much from the SIM as I do the aircraft, and am pleased to enable free exchange of experiences.
Glf