Based on my 2025 world rankings (which include both his Torun and Pardubice high points) I had him at number 37 in the under 19 rider rankings just above Luke Harrison and Jody Scott (who are both a year younger). He's no Mitch McDiarmid (17th in under 19s), and he's not even the highest rated German (Tyler Haupt and Janek Konczak are the names to watch out for).
On that basis I think a 4.00 average is a reasonable aspiration for Hausl, and given the need to settle in to a strange environment even that may be a challenge.