I AM an AD carry, and I play a secondary-carry teamfighting style, never taking more than I'm given and still putting out good DPM. Last I checked, my gold efficiency was something like 156%, which is actually monstrously high. I'm basically a discount Sneaky (he's 23942895748798234x better than me, but it's a way to explain my style).
But me aside, the new TSM strats are not any more complicated than the old ones. Sure, maybe Biofrost is a bit stronger of a laner than past TSM supps. But "high level play"?
Alright, let me put it to you that adequate high-level macro requires adequate vision, yes? Otherwise it's just guessing. You can call it hard reading if you want, but that's kinda like playing magician. TSM's wards per minute (WPM) in the regular summer season was 3.32, third in the NA LCS. Their wards cleared per minute (WCPM) was an abysmal 1.21, seventh in NA.
The worst WPM in Korea was Afreeca Freecs with 3.35. The worst WCPM in Korea was MVP at 1.30. Literally every single team in Korea had better vision control than TSM in the regular summer season.
You can't call strats without seeing what your enemy is up to (or isn't up to), and you can't out-macro if you can't deny vision.
I've seen and heard TSM's comms and their attitude towards the game. I've studied their players in solo queue and how they conceptualise the game, and it translates pretty accurately to their team approach.
2016 TSM fishes for plays and kills nearly constantly, but without any second intent (to borrow a fencing term). They all want to make a play, but they have no idea what they want to do with the play once it's made. God forbid the play fails. They never say anything close to "we need to get a pick on one of these specific champions so that we can get advantageous drake positioning". They never actively attend to or manipulate side waves; they react to them and push them when they have nothing better to do. Despite what the quote from Bjergsen there says, Doublelift does not possess a godly oracle-like ability to call the good Barons, and what to do once on the Baron.
They might look more proactive, sure--and they are, in a way. But they're still mostly dumb muscle at this point. The plays they fish for often work because of Bjergsen and Doublelift's combined firepower, but you can't always rely on things like that. They need to make the transition from "make a play, then consider options" to "consider options, then make a play engineered to enable several of those options".
And as for a good shotcaller to take pressure off Bjergsen (and one who DOES have a history of godly baron calls---think of the signature "Fnatic Baron" where they steal it from under your nose)...
They had one in Yellowstar. But they didn't let him work, talked over him constantly, dismissed his shotcalling ability because of his average laning mechanics, and eventually let him go. Such a shame.