No braking method is sufficient in all situations. There seems to be a common theme on this sub-forum which is advise people to prepare for certain worst-case scenarios. Of course, those scenarios seem to differ from person to person depending on their own personal preferences. If one prefers to ride a front brake, then the worst case scenario given is one that could be prevented by use of a front brake. If one rides with both brakes, then the worst case scenario is one only mitigated by having both brakes installed, etc...

I hate to break it to you (pun intended) but using skids to stop is no less silly than using a track bike to ride around town.