So, are you offering your opinion of old code provisions on a 7 year old thread question? Or, are you asking a question about how the issue of wind speed is handled by the code?
But, the 98 code is not under consideration at the time of the OP nor now.
Everything I have available in front of me from 06, 08, and 2010 all say 5 mph that winds should be reduced to be shelters.
Brent