Sure the French colleagues operating at CDG all have ICAO ELP 4+.
I still think the mixed languages were irrelevant to the situation as it unfolded here.
The proposed safeguard is the Incident aircraft picking on the 4the transmission about the different QNH.
They seem to have been too deep in a hole of their digging at that point. For sure they did not pick it from the 3rd transmission (EZY read back, proper English I would suppose).
Blame the French for language problem other time, blame the French for useless MSAW intervention. Over here the lingo did not play a role nor would have changed the outcome, your honour.
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Would it not be ironic if one of the GetJets pilots was actually a native French speaker?