I watch a lot of Swift Current Bronco hockey and I can definitely say that Steenburgen is benefiting from Hepo and Gawdin. That line is WAY better than anyone else in the WHL right now. As far as his abilities on his own, he surprises with his ability to deke, protect the puck, and take quality shots from any angle. Most of his goals right now are coming from wicked passes from Heponiemi while he finds an opening in front of the net.
Their line is exactly what people talk about when they say they have players with different skillsets that compliment one another. Heponiemi is fancy, dangles and can always make space. Gawdin is more of a 2 way power forward and centres the line. Steenburgen is a fast shooter.
Keep in mind that the Broncos beat out the MJ Warriors and were up 3-0 on the Regina Pats last year's playoffs. Those were two of the top teams in the WHL. They did it mainly with scoring from these 3 against guys that were 1st round picks, they can play.
I honestly can't say whether Lind is a better prospect yet as I haven't seen him play, but in my opinion those 3 are the best players in the WHL right now.