The design team for Type 31 were mostly based in Bristol, I never meet any Danish people when I was there. Most of them were English and Scottish. The basic ship is a good design but a lot of the fitting and equipment the Danes installed was not marine specific equipment. For example the HVAC system for example was not a marine HVAC system but a commercial building system with very limited marinisation. The interior light fittings came from the land market, not marine specific. The ship was built down to a very low budget. Babcocks had to change a lot of the systems to marine approved systems.Ok, photon torpedoes, warp drive powered by dilithium crystals and flux capacitors in series powering a death star beam.
I read somewhere that the OMT F370 design team are now working out of Babcocks in the UK anyway. How true that is I don't know, but it would make sense in a lot of ways.