It wasn't that Peter was clever, it was a combination of his brains and the Spider-bite that gave him the KNOW-HOW on how to make webbing.
Even though he has organic webbing, it doesn't mean we won't ever see web-shooters in the movies. He could have organics AND web-shooters. This would let him have impact webbing and variants of the natural webbing. This I would like to see and maybe it would be a redeeming feature of the movie in the eyes of disgruntled fans such as Mr. Parker?
I understand how Mr. Parker fells, because one of the few things Spiderman The Movie did not show was Peters true genius. He was just a dork, an average dork. This meant that ANYBODY could have been Spiderman in the movie. This is not true, as only Peter Parker could have been the true Spiderman, because only Peter Parker could have been clever enough to create the webbing. That was what made the comic Spiderman so unique.
Also, having organics was always going to annoy fans of Parkers solutions to enemies. Parker would always go away, do some research then come back and kick butt when he found the answer. He would mix things into his webbing (like cement/gelatin into his webbing for Hydro-Man etc). It was all scientific. I can't really see the movie spiderman being anything more than an action hero who saves the day by just using skill alone. The comic villains were always more wary of spidermans skills, and that was why spidey had to beat them using his head.
Anyway, I like the movie, but I totallyunderstand where Mr.Parker is coming from, there maybe hope in the next film yet...........