There is no way that the breaks can't disrupt the work flow there. Either by slowing the production line or asking/demanding that non Muslim workers cover the work during the breaks.  There have been other, less reported, stories about personnel difficulties there because those that are being forced to pick up the extra work claim that a fair amount of the "prayer breaks" are actually spent socializing.  I don't work there so I can't say 1st hand, but I know there have been stories in local papers to that effect.