So it's practicly impossible to survive if you get attacked by more than one dragon in a single day.
I would say that if you immediatly get attacked by another dragon they at least should have implement the ability to shout again immediatly.
It's not a whole day lockdown. It's a
cooldown period. It just means you wont be able to use it for a short period of time. That's just to stop you going "ForcepushForcepushForcepushForcepushForcepushForcepushForcepush, dead dragon." Like I said, think of the Mass Effect 2 system.
Well... Not quite like it. Basically, if you have five different hypothetical shouts you can use, you'll have a moderate 'overall' cooldown during which none of them can be used, after which you can use one of the other five you didn't use before. Each individual shout also has its own personal cooldown which takes longer than the overall one.
So, you'd be able to fire off all five within a moderate length of time, but it would take longer to reuse a shout you've used previously. I think that's about right anyway - corresponds with what was written in the article. It wont be a once a day thing, a la Greater Powers, trust me.