I like 'From' but the idea of anyone been romotely sceptical about anything anyone else has seen, given they're in a strange continuum with monsters, is like people objecting to new trains in Thomas and Friends: it's an island with talking trains.
Obviously From isn't about talking trains but if you were within the From universe and said "yeah, I saw this ginger elf" my immediate reaction wouldn't be "pics or it didn't happen". It'd be "where did you see it, down by the magic tree?". If anything maintaining any sort of scepticism under those circumstances would be the real battle.
Had Percy stayed sceptical in "Day of The Diesels" it would have been "Five Minutes of The Diesels".
A younger relative is quite keen on Thomas.