Good lord! Even San Marino (population 33,000) has a team. They're not in the top 200 countries, but they do have a ranking. That is impressive.... For the 2018 tournament all 210 nations entered the tournament although Zimbabwe and Indonesia were disqualified before playing any matches....
The IBSF (snooker) only has 91 member nations. I still think that's enough to have a legitimate world championship.