Yes, it is true that Misfits had one of their best games since their 0-3 EU Championship games if you want to base it off game stats. I'm not sure why PoE was allowed to have LB. Not smart drafting in my opinion.
EDG nearly won games, but didn't win a single game. Due to late game execution errors and mistakes. They may come back and 3-0 this week, they may not. But it proves my point that the ENTIRE playing field (as you stated above - excluding EU LMS and GobbleNation) is very close in competitive strength, from a team macro level and individual mechanics level.
I want you to go back and watch the IMT game... sure, they stayed even (+ or - 2k gold) for the majority of the game until about 25 minutes when they CHOSE to take an infernal drake, giving LZ an almost free baron and essentially snowballing the game into a loss. Xmithie proved that he is NOT an Ezreal player and I don't necessarily like the pick in competitive or even ranked play. If you don't get ahead early, you may never have enough damage to be effective in a team fight since you offer zero utility AND are squishy as hell. So yes, I can argue that IMT is not definitively better than any other NA team.
It all boils down to what we've both said time and again, it comes down to this next week of play. You also have to remember that small leads in and of themselves are effective early, but not so much when you hit 20-25 minutes. Out of a 1.5k gold lead, you could have had 500-700 gold easily invested in pots and vision. Yes, this CAN grant huge advantages but I think most teams are proving that it comes down to the first major team fight win, which typically aligns with the first baron. I don't have a problem with TSM picking a scaling comp and maintaining a <2K gold deficit at 20 minutes. I WOULD prefer a stomp, or an early game execution that pushes to mid game snowball but we have yet to see that from TSM.
Different strokes for different folks I suppose. Let's come back to this after this weeks games!