Indeed.
The one that makes me laugh is how little attention is paid to the form of the 3 promoted sides during the previous season. We finished 22 points ahead of QPR last season, for example - you'd think that might count for something in the various analyses.
But no, you couldn't possibly bear that in mind - because 'the Premier League is a completely different kettle of fish'. OK sure, it's a higher quality league, but it's the same bloody game at the end of the day.
Yes I know there are some obvious counter-examples to this from recent years, but I'd be surprised if, over a long period, the teams that have gone up as convincing champions and kept all their players and the same manager haven't generally fared better than the sides who have come up through the play-offs.