I'm sure they could Xeon (
) but they also played NW. If a pro native player came over to NW with little to no experience they would not stand a chance in a groupfighting tournament with top quality players. I'm not doubting their skills but timing and knowing the length of ones bayonet is highly important without this knowledge you will lose a 1v1 situation most of the time leading to gaps also at the start of a round when the 2 lines are facing off, darting in and out knowing if you're going to beat the guy in front of you to the punch is down to experience with the length of the bayonet. Also the psychology of the game is different in native and in NW groupfighting, when you're going to back stab someone any good groupfighter will know if their opponent knows that they are approaching the signs are obvious to anyone with a bit of experience counter to someone who has never really gave NW a good play through.
In conclusion having native players in competitions is awesome! Bringing together the community is lovely, but claiming that any good native player is harder to kill than a "pro" NW player is false and silly.
Also It was a more of a jokey comment than anything.
Edit: Fluffed my comment out a bit to explain my point a tad better. I'm on my phone so sorry if there is any grammatical errors.