Blippy, further to
le Pingouin's reply, the sample size is also too small. For example, in the last 5 years, West Radar has a 67% pass rate, but thats 2 out of 3 people. If one more person has passed it would be 100%, if one more person had not it would be 33%.
If one group has a 100% pass rate and another has 33% it's easy to conclude one group is better at training than the other. Easy, but very wrong.
(Only 20% of people understand statistics, but 80% of people think they are in the 20%
)
You will never be canned on one person's opinion, or one check run, or on your first 'final check'. Groups have more than one check controller (they check each other), and you will have reports from a number of training officers aver a period of time. As often as not thee final trigger is lack of progress/improvement over time. If your training officer thinks you need a bit more time you will get it. If the consensus is that you are not getting better over time, you won't.
Having said that, any group of people will have it's share of @rseholes, occasionally in positions of authority. It also true however that occasionally people who cannot do the job are convinced they can.
Finally, never put too much into any one opinion or story (above included), most people are individuals, and your experience may vary. Good luck
.