If the METAR was telling them that the cloudbase was at 200ft then presumably CHC SOP's would instruct them to make an approach which would involve cloudbreak occurring in the final phase of the approach while on automatic and pointing down the middle of the Sumburgh centreline?
They will have weather minimums in their Ops Manual that will require them to do an IFR recovery vs a VFR recovery.
I'm sure it doesn't say:
"In the event that the cloud base is 200', carry out an approach to achieve cloudbreak in the final phase of the approach while on automatic and pointing down the middle of the runway centreline"
Which is what your post implied, to me anyway, it should say.