....They literally investigate every single LTIR movement.
They do, but the medical system also gives out green cards, handicap parking stickers, and fentanyl to people who fake their symptoms or do not require it all the time. Who says that Leafs aren't paying Murray in a hidden account to sit out the entire year? I am not sure how the finances work in sports in terms of being paid, but I would not be surprised to see LeBron get much more than his 99-million-dollar contract if you disregard any of his sponsorship funds as well. Who says he doesn't have a Suisse bank account in his wife's sister's name where he gets blank cheques to cash from the NBA portion of Chinese money? I am not saying sports athletes do this, but it is very easy to conduct money laundry.
Portland Winterhawks from the Dub were hit when it was discovered they were giving away cars, higher funds, and better housing to be able to recruit top prospects both from America and Europe. Think about all things that happened in throwball and basketball when it comes to NCAA universities getting top recruits (major money makers for the school). I am very sure 98% has been able to be hidden and only some of it has come to the surface. "Faking classes, changing letter grades, and putting top athletic students in the easiest college classes" are just the tip of the iceberg.
Landeskog went from winning the cup to 2 years of LTIR
The problem is there was a gradual decline in Landeskog's play that eventually forced him to the LTIR. Murray got injured in the season, appeared as a backup in the playoffs, and is now done for the entire year. That shows a level of inconsistency to me IMHO. Again I am not saying it is a conspiracy, but it might've been serious neglect by the medical staff to allow him to back up during the playoffs that need to be dealt with properly.