Seriously? You ignore all of the examples I gave because I included Shutt whose rookie season by the way came after a first round exit? And there are people who 'liked' that non-answer?
What about Koivu, who joined up after missing the playoffs, or Suzuki, same circumstance?
Then you try to claim that Roy is better suited to the top 6 than RHP. OK, maybe, but he still might not be ahead of all these guys on the first day he comes up:
Suzuki-Caufield-Dach-Monahan-Newhook-Anderson
Furthermore, even if Roy sneaks in as #6 because he is already better than Anderson and Slaf and Pearson and RHP in your mind, that hardly makes it a RULE like you and others wanted to make it - that a player must rot in the minors if he is not ready for a top-6 role the day he is called up. Third line = not good, beneath the player. I once had a 12 year old tell me that "I'm not playing right field, it's a stupid position" after he made an Intercity team when in the past he played shortstop in house league. Brilliant - he got to play bench instead.
How about instead of twisting yourself into a pretzel to avoid ever admitting you made a (gasp) overly zealous claim, you just admit that a third line role with say a Monahan or Dach or Newhook at C is worthy of most rookies' entitled eminence. Or that playing with Jake Evans, while maybe just a stepping stone, won't kill him. Cheese is Price.
By the way, I really like Joshua Roy and think he is our best winger prospect. But enough is enough. The AHL is not the NHL, and thousands have lived the difference and had to adjust to the best league in the world before seeing their roles grow.