Using both clipless and platform pedal bikes I don't think they have much to do with safety and commuting. We could argue which is safer on a nasty MTB trail (I go with clipless), or which is more efficient (again clipless ) but on a commute? They are equal to me, at least once one has been cycling clipless for a while and use them naturally. I use platform pedals on my commuting and everyday bike usage because I don't have to cover long distances, and with clipless I'd be uncomfortable either using bike shoes for walking either carrying another pair of shoes. For a longer commute I'd consider clipless.