Yeah, I thought similar when I read that recipe too.
It reminds me, not long after I took up the hobby a few years ago, when I was researching Czech Pils after a work trip to Prague, I found
this old post.
Interesting to note he claims the Czechs used a healthy flameout addition of Saaz.
I can still remember just how good that real Czech lager in Prague was - just recently I've been formulating a plan to try again and see if I can get anywhere near it, this time using Crisp's "Haná" heritage Moravian barley.