Macron is absolutely stupid enough to try this stunt. But I really doubt the veracity of this story. For one thing, some of the hot links in the story are dead, for me anyway. And I can find the story being reported at no other major news source.
Macron needs to watch the movie Napoleon, which is awful except for the segment when he invades Russia, the Russians burn Moscow, Napoleon has no food and the weather is horrible, retreats but leaves 560,000 out of 600,000 troops dead.
It looks like you're right. I searched and saw nothing on this, other than Macron saying he hasn't ruled out sending troops to Ukraine.