Yes, there's a lot of coincidences in this movie. There are in the previous ones as well.
Funny thing though is, this guy doesn't seem to be capable of discerning coincidences from non-coincidences. I mean... "Gwen Stacy happens to be in Peter's class". That's not a coincidence, because she's introduced as a person in his class. If that's a coincidence then that MJ lived next to Peter, etc is as well. But that's not coincidences, it's the frickin' base of the character.
Likewise, it is clearly a coincidence that a meteorite with a symbiote strikes near Peter's bike... it is not a coincidence that the symbiote attaches itself to Peter's bike. It sensed possible hosts and went for it.
Just seems funny that someone writing about coincidences hardly knows what one is.
That said, yes... there's plenty of coincidences in there. As are there in the comics, as are there in the previous movie. Coincidence is a trait of comic book stories in general.
Edit:
A few examples from Spider-Man 2 off the top of my head:
- Doc Ock knows Connors.
- Doc Ock's sponsor is Harry Osborn.
- MJ is going to marry the son of JJJ.
- JJJ's regular photagrapher for certain events is off/sick/whatever, so Peter has to photograph the event where MJ's connection to JJJ's son is revealed.
- It's been two years since Green Goblin died (or something on that time scale), but as soon as the first new super-powered villain since then shows up, Peter loses his powers.
- Peter and May are at a bank at the same time that Ock decides to rob one, and it's the same bank.