"Because if it does become more deadly, it could cause a very severe scenario"
It could, but it does NOT. Swine flu is by far less deadly than seasonal flu. In Germany we have 15k swine flu cases and not a single death in 4 months. In contrast there care 20k flu related deaths in Germany each year.
"20k flu related deaths in Germany each year"
Yes, 20k deaths obviously refers to seasonal flu. 20k deaths OUT OF HOW MANY CASES? No information. So we don't know the death rate for ordinary seasonal flu. So we don't know just how the rates for swine flu and ordinary seasonal flu compare.
(Of course we know -- assuming your numbers are right -- that the observed death rate for swine flu is zero. But we don't know, e.g., whether the death rate for seasonal flu is so low that a figure of zero would be unsurprising even if swine flu were worse than typical seasonal flu.