Just a point. Go aircraft have Flydras installed which monitors hundreds of parameters for the purpose of flight safety. We also fly BA procedures and BA SOP's.
Its a complete red herring to think safety is a cost saving in low cost aviation. The very first low cost carrier to have a major accident will be bust by the end of the week. Whereas BA or any major world player can suffer a hull loss without 100% of their customers choosing to fly with someone else next time.
This fact would make a ridulous basis for arguing that BA is unsafe to fly with.
Which is why its ridiculous to speculate that Ryan, easy or Go are less safe.
Cheers,
WWW