they were not that religious,
<< THEY WERE FANATICS, YOU MORON. >>
Wunderful2gether, if the fundamentalist version of their religion says don't drink alcohol and not to get lap dances from stripperslike they did, they are by definition not that religious.
You have a big problem understanding basic facts.
The actions are clearly as fanatical as any suicide mission of a US soldier or Japanese soldier for example. The story is also that only four of them actually were in on the plan to commit a suicide attack with the planes.