OK, guys, I need to correct some misconceptions:
1) You can NOT calculate the size of the contact patch using inflation pressure and load. It doesn't work that way. Here's a link to a proof:
Fact or Fiction? Tire contact patch and air pressure.
I've also noted other studies in this web page:
Barry's Tire Tech
2) I think the "long" is a relative term - meaning, "Instead of a short, broad contact patch, these tires have a long, narrow contact patch." - and that makes sense in the context of a larger diameter, but narrower tire.