Define good job. He was okay. Just like tons of No6, No7 or No1 or No2 AHL'ers could be for a short period of time. Mete was doing fine too....and most want him out. Kulak is doing fine...until he doesn't and some wanted him out. Folin could do fine for 25 games too. Same for Ouellet. No offense to show for. How many players are we thrilled with for 50 games until we want to throw them in the garbage? Jiri Sekac was fine too etc....
Being fine for 30 games is NOT a testament enough to say that he surely would have made it if not injured.
Juulsen best percentage of time on ice per game was at 16:43 in 17-18. He's around the same type of numbers that Davidson, Jerabek or Schlemko got. Geez evenv Lernout had a 15 min average at one point....And I'm pretty sure you don't think all those guys were fine.
Yes, I know, Juulsen was young and could have improved. But some prospects also reach their ceiling sooner. And again, until he gets it going again, there's just no way to know.