Although he's improved his singing a lot over the past 5 years, I'm not ready to unclassify him as a faux chanteur. He just lacks vocal range from an objective standpoint
I was at a concert of his in Brazza back in 2011 and he was loosing his voice 2-3 rhumbas in and it became the chorus singing 95% of his parts.
He's still the greatest guitarist and arranger the Republic of Congo has ever seen