i don't think it really affects kmeleon, i had a hard time to test the script in kmeleon because thee search results in google were direct without google tracking. it started to show the google track links when i changed the useragent to firefox and for certain results..potential marketing searches like samsonite or samsung or 'ford dealers' but when keyword was 'test' or kmeleon it showed no google tracking when i copied the link url.
so it appears to be triggered with firefox useragent and certain keywords. probably an agreement between google and mozilla(possibly other browsers too).
anyways, this macro adaptation works when the tracking exists
for now, i don't think it's needed for kmeleon
there's also an extension called clean redirect for such links