The UK sight-of-surface for VFR was never in the slightest enforceable or even verifiable and I have never come across anybody who actually bothered to comply with it
and who was able to radio-navigate. (one could say the same for VFR in IMC actually
).
It merely generated gigabytes of discussion on pilot forums
The way it was worded, seeing a mountain peak 100nm away sticking up from the cloud met with the requirement.
This would have met the requirement many times over...