I'm sure Royce has seen enough jiu jitsu to accurately gauge someone's ability in a short period of time. Apparently some people believe he gives out blue belts like candy, I don't know, never been to one of his seminars. However, I don't really find it to be any more detestable than an instructor whom holds white belts back so he can claim his white belts are better than the other guys blue belts. IMO, that's not high standards, it's just a means of inflating one's ego. I know a guy that has absolutely crushed his division in every competition he's entered for the last 2 years. Guy has probably two dozen medals at white belt and beginner nogi. If his instructor wants to sandbag him to collect team points or meaningless medals, whatever, but unfortunately many of the people he's beaten may be judged by using an unfair standard. Ideally, people should be graded somewhere between the two extremes. Honestly, between blue and purple, I think things kinda get sorted out anyway, so even with various standards, high purples and browns are usually fairly even between schools and instructors. Atleast that's been my observation.
As far as not having a black belt around to give promotions......Well, sometimes you're just shit out of luck. There's a lot of blackbelts out there that wouldn't be blackbelts had they not sacrificed a great deal of time and money to travel.