It's worth considering that these residency tests are just the current rules. Money is short in the governments pot and they don't seem to be trying to claw it back from the corporations.
Who do you think will be targeted for their contributions in future to appease the disillusioned UK middle?
It's even more significant now as the ME seems to be introducing new taxes each year, so you be hit with a double whammy if they deem you as UK resident (family move back, property owned etc).
Just a thought. The world's a changing for sure 😢