I really wish more indies could take on the no-sales policy. It'd give me tons more peace of mind to buy a game when I actually want to play it, rather than always waiting and doing weird backlog hoarding when Valve decide it's wallet-opening-time.
But as the video shows, the policy was a risk for Wube even back in the day -- it's an even bigger risk now that everyone and their dog expects to wait for the sale, and especially if you happen to have a game that's not quite as incredibly popular as Factorio.
It's not exactly the same thing, but itch.io allow developers to have a "reverse sale", where the price goes up for a given period. It was mostly a joke feature, perhaps intended to provoke a little thought about sales culture.