The 2500 hrs can be in command of any multi-crew aeroplanes. Though up to 10% may be achieved in a flight simulator approved for the purpose by the regulatory authority.
However those are the Shell minimum standards and I would have thought their would be an even higher requirement for Scatsta due to its unique challenges. I must take that up with the SAI advisor. It is possible that the influence of the rest of the IAC consortium has had negative effect
The oil industry has always forced "minimum reqs" on EVERYBODY. This is to make sure that there is a get out wriggle room for them if it goes wrong. (Piper A, Exxon V, GoM etc.......) Shell is no better or worse than anyone else, however, if u want to fly on an OGP contract, the mins are stupidly high. Have flown for the oil boys south of the med, dont meet the mins (for them), but the insurance companys and pax seem happy! If a company says this to you, it is total bollox. The main reason is ALL aviation is put in the same slot as the fling wing boys from bristow et al (no disrespesct), however, not going to see a saab on one of the platforms soon........
Cheers