Grouchy, why don't you tell all the findings and the causes of the incident you are refering to.
Basically french was not the cause of this incident as you seem to imply. The report states: "A risk of collision occurred as the result of an ineffective controller handover procedure..."
Amongst the 18 findings of the report only one mentionned the fact that the RJ crew did not undestand french and it is in 13th position. Hence, your assertion that it was remove for political reason is absolutely false.
If you want to check, page 22 of the report as para. 2.5 Language of Communications covering this part which according to you was not in the report.
EuroATC, you should also reread the report if you have it.
Because, both of you, are guilty of intellectual dishonesty.