They do touch the game on a pro level and have watched it for years. Their pov is just as important as the pro players. You don't have to play the game to understand the niche aspects and to have a deep understanding anyway.
Flamie and olof are similar players in that they drop low frags holding small sites, but if you want another example of a player who was formerly good but holding his team back, look no further as to when GeT_RiGhT was playing on NiP as support.
3rd Paragraph is hard to read for you?
I mean that these experts on the game you worship will die when it's better to save a gun and their main reason will be to "even out the money".
Also remember when NiKo was IGLing FaZe and they could have picked up ALEX, Aleksib or literally anyone to IGL but they decided to pick up Bymas, AdreN and Neo? Pro players don't always know best.
Analysts like Maniac, Thorin, RLewis have talked to players behind the scenes. Thorin criticised NiKo ALOT because people told him behind the scenes that NiKo essentially doesn't think that as long as you don't win anything big, you aren't a better IGL than NiKo.
Also these analysts literally do hang out with the players sometimes at afterparties and such during, before and after events. It is common knowledge.