Taking bad beats is a sign that you are playing well. When you are playing against weaker opposition, you will take far more bad beats than you will give out (Hilger, Taylor The Poker Mindset).
This is less and less true the more I think of it, and totally agree that it is more likely that they were talking about NLHE/other poker besides a showdown-happy game like SNGs. We just use the equities/blinds to dictate our push/call/fold ranges.
But I also think about "a bad beat" differently when I'm ITM than when I'm 4th-9th. Thankfully, from one session to the next, even game to game, I'll almost never remember any type of beat, but almost certainly never a bad beat when I made the money.