Debatable. I already provided a few quotes in the OP, but the parish was quite aggressive in its promotion of Martin Luther and the Reformation…here are the original quotes from one of the videos, as well as a few others for good measure, with timestamps if anyone wants to listen to the French for themselves:
“If the [Catholic] Church today proclaims, studies, and announces the Gospel, we owe this to the Protestant communities, we owe this to Martin Luther and his love of Scripture.” timestamp: 2:18-2:30. (If it wasn’t for Martin Luther, the Church wouldn’t proclaim or study Scripture?)
“[Before] there was a fracture between the [Catholic] liturgy and Scripture. It is thanks to the Protestants that we have been able to reunite liturgy, tradition, and Scripture.” timestamp: 2:57-3:07. (It took Protestants to fix the Mass?)
“I think that the Catholic Church must take it [Protestant Evangelization] as a model, must take it as a model and give thanks to the Lord for what has been accomplished.” timestamp: 5:20-5:26. (Protestants leading others astray into their errors is something we should thank God for?)
“For me, it’s really these things [Protestant study of Scripture and Evangelization] that make me give thanks to the Lord, for Christ, and the proclamation of Christ which the Father has given us.” timestamp: 5:30-5:45. (God the Father gave us “Christ and the proclamation of Christ” through Protestantism?)
“This anniversary obliges us to look towards the future—we’re not looking back at the past, we’re looking towards the future—and if we’re looking towards the future, it’s because we’re able to mutually respect one another, and are therefore able to work together to proclaim the Gospel.” timestamp: 5:59-6:13. (Does all this “mutual respect” leave any room for conversion to the true faith?)
I can’t speak for the actual event, not having been in attendance, but it’s clear that those responsible for it hold views which go quite a bit further than mere appreciation of gestures of unity. It is undeniable that there is a defense of Protestantism and its “fruits”, which are presented generally in a positive light.