I really don't see what all the fuss is about. Something like three people died. Pfft.
What does level 4 mean anyway? Or level 5? They shouldn't be numbers. The scale should go like this:
Level 1: the notebook (in terms of kleenex sales)
Level 2: cabin fever
Level 3: anything '..of the dead'
Level 4: survivors (the best show to come out of itv in a LONG time)
Level 5: 28 days later/i am legend
then again, i really wouldn't want to be at level 4 on that scale..