Not necessarily true, occasionally some people take more time, it can be attributed to multiple things such as time between sim and IOE, there was a time not long ago that that was over a month wait. Furthermore people are flying trips with senior LCA, it's easy to do 2 4 days that make up 50 hours, if then a candidate still isn't up to scratch, , sometimes it's say visual approaches because they haven't done much of those on their trips (easy to do with a lot of trips with arrivals to approaches)and they do one more trip suddenly they are at 75.

I think our training department does a great job, so I'm willing to say more often than not there is more to the story.