I can understand it, particularly if Schmidt was acting in good faith but on bad intel...
The way Mr Burns explains it, Schmidt was not given any info about a possible Allied unit there by its AWACS controller.
SO if there is a blame to lay on someone, I guess it should be either on the AWACS team (if they had knowledge of the Canadian unit being there), on the guys who fed the AWACS team info (if they failed to signal the AWACS about the Canadian unit), or on the Canadians themselves (if they failed to signal their presence there).
Whatever the cause of the tragedy, this kind of thing just conjure bad blood between the two armies.
Thanks for posting. French conservatives must be encouraged :-)