IF is the best word in the English language. You might understand who and what, but you don't understand why and how without understanding IF.
Many "champions" benefit from a bit of injury and matchup-related luck along the way, and injuries large and small have affected most playoff seasons. Don’t listen to any asterisk talk, ever. Look at league history and you’ll find that an injury tilted the championship odds at some point damn near every May or June.
2016- Curry, Igualdola, Bogut
2015- Kevin Durant, Kyrie Irving, Kevin Love
2012 & 2013 Miami Heat- Derrick Rose; Russell Westbrook, Serge Ibaka; Dwight Howard
2010 Lakers- Kendrick Perkins
2009 Lakers- Yao Ming; Kevin Garnett
2008 Celtics- Andrew Bynum
2005 Spurs- Joe Johnson
2004 Pistons- Karl Malone
2003 Spurs- Dirk Nowitzki
1999 Spurs- Patrick Ewing
In sports, IF is important because championships are overrated in general the way they're used to define players.
When you understand IF, you understand that "champion" doesn't mean "best." LeBron didn't become a better player when Derrick Rose got hurt but the benefits reaped from that bolstered his rep in a ridiculous way, suddenly acknowledging what had been true for years. Patrick Ewing was the best player on teams that made the Finals twice but his entire career is defined by not winning a championship his team could have won had he not been injured in 1999? But Tim Duncan is a GOAT based largely on five titles, three of which (at least) were won with a lot of luck? Bullshit.
Context is important. You can't just remember titles and ignore the circumstances behind them. Scoreboard don't lie but it don't tell the whole story, either.