The good outweighs the bad by alot because, along with what you said, TASM also has going for it that fact that
1) It's Spider-Man and everyone (especially little kids) love Spider-Man.
2) It's in 3D. A huge addition to its take.
3) It opens July 4th, the biggest movie going week of the year, and it has 4 days, including the day it releases, all to itself and then only small competition over the weekend. Then 2 and half more weeks to take in money with, still, no significant competition releasing until TDKR releases.
4)The asian market loves Spider-Man and That's where majority of the take for these films come from. Considering its been 5 years since the last one, I think they'll be itching to see this one.
5) People are interested in this film. The trailer piqued the interest of a lot of people and most will be seeing this so see if its a good restart to the series.
So, I thinks there's a fair chance it will take a billion at the box office.