While I felt we have "won the game", I also agree with the sentiment that it is not a 100% guarantee. I view it similar to planning for tomorrow or the future - the odds are in your favor enough that planning makes sense. But your tomorrow or the future is not 100% guaranteed.
Our planned retirement SWR (after pension) was over 2%. Before the pandemic hit, it was running closer to 1%, and we were doing everything we desired. The pandemic has pushed our SWR lower. So, mathematically, a 2% SWR will never run out in our lifetime. In the remote situation that I lose my pension, our SWR will still be under 3%.
There is also the emotional component. The downturns since June 2018 reassured us that we would be fine, even at prolonged lower levels of the market. I do not need to work for earnings, so the job offers I get, while interesting *IF* I needed work, just seem like a chore. DW is still pinching herself that I have told her to stop her part-time work when she wants, it does not matter to us financially. We are more than content with what we have achieved and my lot in life. There is another thread where someone laments that, in retrospect, had they had a more aggressive AA they could afford a $1.5M house instead of "just" a $1M house. Discontent can be more of a threat to "winning the game" than anything else.