too_much, I transcribed what was available and never heard anyone mix up QFE/QNH. What do you mean?
As far as I can tell, QNH is only given on request, or when the controller already knows that one flight is flying according to QNH altitudes, and even then apparently always gives QFE as well.
Herod, there is no indication that anything was wrong with the glidepath up until such time as they went around, both times. Both final approaches sit snug on top of each other in the 3D flight path representations I have seen, such as
this one.
They also always explicitly acknowledged "metres", and will almost certainly have had charts with the conversions.