If i remember correctly KDE used to be GPL when webkit started, and was later relicensed. The difference is relatively irrelevant anyway, the way they used KHTML they would have had to release sources even under LGPL. Had KDE used BSD, MIT, or Apache, back then, we likely wouldn't have had webkit.
You might be right. Still, it shows the Apple attitude at the time, and how the license helped changing their ways. Note how the post complains they are simply using OSX apis... without the modification-release clauses, webkit as a reusable library would never have happened.
