When I talk about dojos that hand out blackbelts like candy what Im talking about is dojos that have really low skill requirements for the black belt, so that students can have really terrible skills and still get black belts. Its not a matter of how long it takes to get black belts, if you have high skill requirements and a student meets the skill requirements in 1-2 years than you can give said student a black belt in 1-2 years without being a McDojo.
This would of course not apply to dojos that don't have belt systems, other factors would be taken into play when determining if such dojos are McDojos.