How does anybody know for sure if they're "praying"? If they're standing in the aisles speaking Arabic, how are non-Arabic speakers supposed to know what they're saying? Hmmmmm?!!!
Only 3 were standing and praying
An Arabc speaker overheard an anti-American conversation and reported it.
If standing and praying was so important they could have taken a different flight.
local police report said they were praying in the terminal & on the plane.
they also refused to sit where they were supposed to sit.
they also ignored instructions and commands from the flight crew.
regardless of religious preference, you don't get to be an assclown on a plane.