Because these players don't have much name value. That has always been the difference maker with NA vs EMEA. Obviously NA is more stacked on paper because many ex VCT players had to downgrade to tier 2 and they don't have stupid region locks, but the difference in level isn't going to be that massive.
Guy like Musashi likely doesn't ring many belts for someone who didn't follow EMEA, but he was doing just fine in weak team in EMEA VCT just where some players from TSM, G2 etc were doing in NA. And I rate Monsteerr over guys like Dapr or Wippie etc while most non-EMEA followers don't even know who he is or how good he is.
NA just gets carried by clout factor. Many of these VCT players who now have to play in tier 2 weren't that amazing and aren't much better than tier 2 talent in region like EMEA. This Acend could definitely beat TSM or G2 and I would even favor them even tho its hard to say for now.