Don't you have to look at his latest performance instead of a performance of a month ago? He wasn't that great at Paris-Nice
In what world was any of the Paris Nice stages comparable to MSR? Literally no way to tell from Paris Nice if De Lie is in top form or not. Him losing wheels in a chaotic sprint doesn't say anything about his form. It could say something about his chances to place himself in good position before the Cipressa and the Poggio, but literally nothing about his legs. The cancelled stage could've showed something, but well it was cancelled so...
Yeah, from what we've saw in that race and in Omloop, I definitely don't see his chances being much worse than Pedersen. We know he sometimes struggles with positioning in bunch sprints, so his team will obviously have to make sure he doesn't end up on the back foot at the bottom of Poggio.
Pedersen has proven a million times he can climb pretty well. Even in stage 4 of Paris Nice this year he was with the last 30 riders still helping Skjelmose. De Lie has literally not proven anything that's close to that. Some really good 1min or 2min efforts in a normal race don't say anything about a 10min effort followed by a 6min effort after 270km. He has never done the 6min watts he needs to survive the Poggio in a race (only on training camp being fresh but that doesn't say anything). People look at Besseges and see De Lie winning on a 800m hill, or see De Lie doing great on the Muur, or see him winning that 3rd stage after surviving 2 hills and think he has a chance at MSR, but those performances just aren't comparable. For example, in that 3rd stage in Besseges he got dropped 2 times, on like 5min hills and the watts he put out weren't anything close to what's needed in MSR.
So go back 3 years in time and sure, he would have a chance, with the peloton not racing Cipressa. But times have changed. A tailwind is expected, the chances De Lie will be at the front on the top of the Poggio are incredibly small. Give him a year or 2 and he will be there. People get potential mixed up with actual current level I feel like. Those performances were really good because he's just 20 years old and the kid didn't even know what a power meter was 3 years ago.
That being said, he will probably start the Cipressa in like 60th position anyways. And if he doesn't I hope he proves me wrong and drops Pogacar on the Poggio.