Well, that is certainly not a summary from Drouin Institute that I know of. Looked at La Prairie records, the first one I can find is in October 1670, La Prairie parish was only established in that year, may have been a chapel before that. But Michel Bisaillon and his wife weren't yet there if the records showing up are correct, they only show up there in 1716 for a funeral of one of their children.
No need to start another thread. The marriage with Ange Cusson in 1748 does not name parents for the bride, while naming his parents. She is just said to be of that parish. Another indication for you. If she was raised by Michel and his wife, it is highly likely that she took the name Bisaillon. Try to find a woman whose MtDNA leads to her, that would tell the tale if she is of native origin. And marrying in 1748 and having children certainly precludes the 1670 dob.
You can change Michel's status from father to adoptive father on her profile. That way there will be less confusion, while still leaving the link to who raised her.