Those sources do not have a secret source for accurate up to date height/weight information. Roy Williams was 212 at the NFL combine but admitted his playing weight was closer to 235-240 lbs. He said he hadn’t played that light since his junior year of high school. In his best season, Mike Martz challenged him to get down to that range again. Roy did it for that season only. Yet during Roy’s entire career sources had his weight around 215.
Take those sources with a grain of salt. They don’t have any kind of secret information.
If he’d take a practice squad spot, sure. See if he can develop with better coaching. He has elite speed and is a playmaker. The other things can be coached.
But I still am not convinced the Lions will be interested, or that he’ll get through waivers.