Sounds terrible doesnt it. Actually NO British prime minister comes to power through general elections. They are NOT elected, except as MP’s. However, by the same token it is very easy to get rid of them, very quickly, if they screw up or lose the confidence of the House of Commons. That makes for very fast transitions of power and therefore stability of government.
Actually, under the circumstances I highlighted throughout his thread, it sounds funny in an absurd kind of way. ;)