As someone who has read the WN (Not the LN) like 10 years ago I don't remember having any particular reactions to Orsted healing Rudeus. Only thing I remember was wondering how he knew everyone and their futures if everyone is scared shitless of him and thought that was the hardest thing to accept at face value. It's kinda absurd to imagine him for some reason sitting down with Paul and Zenith, having some tea and discussing their children and lineage while they're quaking in their boots.
Anyway from reading KrayZ33 and Ryllharus posts Orsted reminds/sounds a lot like MCs in all the generic Manwhas I've been reading lately where they go back in time. Mostly the whole knowledge of certain characters and their future/importance and reaction to the unknown variable, usually the unknown variable isn't an important variable at all and the MC more or less ignores it. So the comparison is basically that Mushoku becomes a story about that unknown variable that the MC decided to ignore/not include in his party, the idea makes it more entertaining in my mind actually.