The "logic" of some posters seems to amount to this: Ole was (actually, genuinely) a clueless fraud. But now it appears he isn't. Which doesn't mean they were too hasty and too bombastic when they declared him a clueless fraud - it just means he evolved: they were 100% right at the time, but now Ole has magically transformed into a non-clueless non-fraud.
The problem with said "logic" is that nobody evolves from being a clueless fraud into a capable manager at the highest level. That just doesn't happen.
If someone you denounced as a clueless fraud proves himself capable at the highest level - well, then you were just feckin' wrong, weren't you? There's no shame in admitting that. We have all gotten things horribly wrong about individual players and managers, I'm sure.
I'm not sitting on any high horse here, by the way. I've been wrong about many things. Just one example: Rodgers. I considered him pretty much a "fraud" who had little going for him beyond spouting cliches and lucking out on Luis Suarez.