I'm ok with Dubas, some hits and some misses.
The last point is silly though, there are some picks that have showed something, nothing really notable though, every team has late picks that show something. None have played NHL games (early still I know), and none have blown up to top prospect type of status, although Tverberg could get there if he keeps this up. I don't hate the Leafs drafting under Dubas by any stretch, but as of yet there's nothing to say it's been great.
2018:
SDA, Hollowell, Kral, Holmberg
2019:
Robertson, Kokkonen, Abramov, Abruzzese
2020:
Hirvonen, Niemela, Ovchinnikov, Miettinen, Tverberg
All have realistic NHL upside and exceeded their draft value by a ton. Now obviously most of them arent going to be game breakers, but thats a big list of players that will be cheap serviceable or even productive NHLers, in the near future.
Most drafts you expect 1 or 2 NHLers, the Leafs look like theyll exceed that.