It is just a bit of a tortuous process for some, especially these days.
Guys don't get a lot of help from the Training Dept or, come to that, line pilots in the run up to their upgrade.
It's just a bit of a tough, uncompromising system.
You reap what you saw.
If you hire experience, common sense and airmenship, but then beat it out of each and every candidate with the too-narrow-minded-sop-stick during the 5 fo years, then you get the above result on upgrade.
I take it as a direct insult if presumed not helping upgrade-fo's!!
You just can't expect the line captains to promote the crap procedures they had to emulate to pass their upgrade.
Experience and airmenship eventually returns when left alone to operate with one's own common sense.