Rarely, if ever, does this work in Euro prospects' favor. The top NA prospects play in junior/college leagues which allows them to put up insane point totals, which is what catches a lot of people's attention, while European top-prospects will be brought up from the junior leagues to the pros, where their numbers are much more moderate.
As an example, Ian Tulloch found that point production in the Swedish junior league translated about as well to NHL success as point production in any Canadian junior league, however, the best Swedish junior players rarely play in this league in their draft year so you never see a player enter the draft with 1.8 ppg in their previous season, as you see with Lafreniere.
Overall, this bias is natural. The NHL teams are based in North America, they have more scouts in North America, the media and their general managers can more easily go and see the North American prospects play on a regular basis. It may be strange to remember now, but in the weeks leading up to the 2013 draft when rumors were coming out, people were quite shocked that Barkov would go ahead of both Drouin (who had torn up the QMJHL) and Jones (who was rated number 1 NA skater going into the draft). Fans were furious over Benning selecting Pettersson over Veleno in 2017, only because 10 scouts Bob McKenzie had polled ranked the Canadian they had seen more higher up.