Just because it’s not CNN or the NYT saying it (they would never go against the state department unless public opinion has already massively shifted) doesn’t mean it’s a bad source.
Le monde is one of the most “reputable” sources in Europe and they’re corroborating, is a good source only a US source? For a conflict on the other side of the world? There’s literally video evidence of the kidnappings.
“MEDIA PERSONALITIES LIKE” is a pretty important part of that sentence that you shortened to sound conspiratorial. It would do everyone well to read the entire article rather than look at the shortest quote for a gotcha.
That’s like the fourth paragraph. So, yes, even if you don’t know him, that’s very influential.