As much as I do share the initial disdain of 'upside down' bolts, this does seem to be a rather unnecessary concern when contemplated with consideration to the stresses, strains and potential catastrophe should anyone of a myriad internal threaded components let go while spinning round at amazin' speed within a Merlin at flat chat or thereabouts.
And what pray tell has been done to the ends of the threaded components of the mounting flange in the first of those pictures? That bit of butchery surely can't be a finished securing technique!!!
jg