The landing distance available on RWY 25 is only 1059m, even for a Phenom 300 with typical reserves four people and typical Middle East luggage volumes, that is pretty short. What is the Runway End Safety Area for that end? If that runway is wet, ungrooved, even the Mustangs that live there shouldn't really be landing on a strip that size. You've had a Premier 1 come off the end before and an overweight King Air 200 crashed a decade ago or so there.
The Phenom 300 landing performance is notably better than the smaller 100 but with little over 1000m LDA, there's very little breathing space for error?
Seems strange that such a wealthy entity as a multi-billion turnover construction group would choose Blackbushe over Farnborough to save a few hundred pounds on fees unless their choice was more to do with privacy and anonymity with a distinct family name to deal with. Why else choose a very marginal runway length?