Yes, I guess buying UK assets while we're gripped by uncertainty seems a sensible approach. I would expect a rebound effect whatever the outcome (that is discounting the now very low potential for a no-deal Brexit).
Norway's sovereign wealth fund is an interesting example of what countries can do if they plan properly. I wonder if our government will ever have the foresight and the financial wiggle room to set up something similar. It's probably hard to justify while at the same time cutting money in real terms to education (for example).