TPA played with 100+ ping on na server from their home the year they won worlds. NA could do that with LCK server right now.
Do they really get a lot out of it though? They get ideas. They get to try to copy and paste Korean strategies and meta to their team - with mixed results. And this also leaves them still behind Korea because... they are learning something Korean pro's have already perfected. Meanwhile Korean pros are developing the meta that beats the meta NA is learning from them. So Korea can both play the meta better, and counter the meta.
As Froskurinn (forgive if I misspell) put it (paraphrasing), teams don't NEED to copy Korea. They shouldn't copy Korea. They NEED to find what strategies/playstyles/comps work for THEM. And then work to be the best at what they are good at. If that's early game comps and snowballing, practice so you can beat any teams that stall for late (like samsung did when they won worlds - they weren't close to the best late game, but they never let it get there without having a 20k gold lead). If it's teamfighting, don't force your toplaner or mid to 4-1 or 1-3-1 split just because that's "the meta". If you truly are the best 5v5 team, you pick stuff to waveclear and stop the splitpush but that can also group quickly, and destroy the enemy 5v3 if they refuse to group. Then even if the enemy is splitpushing, you 5 man push down mid faster than either of them can solo push side lane.
Point being - NA should worry less about Korean solo queue and more about themselves. Their mechanics are fine. They need teamwork, decisive decision making, knowing OPTIONS in a situation (not just one option), and knowing things AHEAD OF TIME (not figuring out in the heat of battle or while frantically trying to properly position and catch an enemy out of position).
Korea's not half as genius as people act like they are. I guarantee over 80% of their INSANE NEW BUILDS have been done with positive results by no-name people in solo queue in other regions before they are "discovered/created by Korea". Faker himself said that low/mid elo players actually are the most likely to create a good new build or pick a champ in a new role that turns out to be op - because high elo players are often too scared to do so since they might lose elo. Perhaps that's why Faker plays so many different champs in so many roles.
Just to name a few non-Korean developed strats that I KNOW didn't originate with them or any high elo player:
- Morgana support - old news now, but she used to be a mediocre forgotten mid until people brought her to support role
- Nautilus support - because people thought... screw morg support meta, I'm doing something different - and this guy has a lot of cc
- Nautilus top - because screw fiora meta that existed around the time his toplane dominance began
- On-hit frozen mallet junglers - because it's not just for gnar (and every ranged toplaner not named jayce sadly)
- Camille support - cc, shield, lock enemy support or adc in place for a gank - making escape impossible without killing her, good damage, tanky
- Morgana top - no longer easily screwed by banshee's veil since it's an ap item now - not so much a tank/mr item for all players.

No, NA would be better served doing more searching WITHIN their region and finding some hidden op stuff in low/mid elo - instead of calling everyone there trash and claiming they can't understand ANYTHING about the game.