Well being someone who's a fan of many shows and movies that are continuously parodied through out the universe (such as Pokemon, Godzilla and Teen Titans), as they say during those comedy roasts "we only roast the ones we love". Or in this case, it's a tribute none the less.
It may be protrayed in a possible negative way, the fact is it's still a reference to the fact that people see Frankie for the sweetie and heart warming guy charmer that she is. The fact that Mac (who Bloo rudefully classified a nerd anyway) and the pizza geek from "Frankie my dear" also kinda ties into this.
The fact is, you don't have to like how the geeks acted nor take it as a jab as in how us Frankie fans actually are. But merely embrace the fact that something we started or gotten into has become something millions of people can now see. I'm happy knowing Foster's world is still paying attention to Frankie.
While that attention but be unwanted by Frankie or just unwanted from whose giving that attention doesn't change the fact her star is shining a bit brighter then usual. I always laugh at any parody or little jab at something I like or I know of, simply because I know deep down, it's all in good fun.
So while we may find Adam (and I forget the other geek's name) behavior distasteful, it shows they have good taste at least

. Frankie's reaction to them was great, reminded me of how Mas and Menos from Teen Titans reacted to Starfire. Their reactions as well as Starfire's was very similar.
Also as far as being "shy" vs. "forward". Take this as a pleasant wink to us instead of a negative one, it shows Frankie obviously isn't into the forward geeks or anyone forward for that matter. It shows she's not a glory hog and definitely leaves her heart door open wide for us .
Heh.