The mocking is almost certainly lost on the climate deniers. They'll just point to the fact that hurricanes and flooding have happened to Houston in the past, and try to paint it as normal natural happenings.
The details of the early timing, the quick boost to Cat 5, etc. will all fly over their empty heads, just like the fact that we are already breaking tons of temperature records doesn't land with them.
Also, many don't care, because they're getting mineral rights and oil well money, setting them up for life to never have to work. Classic "fuck you, got mine."