I think this is oversimplified. He's a young player and Tocchet is a very strict coach who is very serious about playing the right way. So yes if he has to sit him to teach him then it's worth it. Saying he's not skilled enough to play top 6 isn't right either though. He definitely is, he played a decent amount of top 6 last yr even. Which he earned as he made his way up from the 4th line.
What we are seeing from Hoglander is growing pains in my opinion. There are at least 10 maybe 15 teams he could easily slot into a top 6 roll a score points. The offensive talent is there without question.
The question is can he improve enough defensively to warrant playing consistently in the top 6, I think he probably can. And that is where is value is.
As fans we just think oh he did that on that team, just slot him on my team and he'll do the same but of course JT Miller couldn't hold down a top 6 role before he came to Vancouver too, and we know what he's done since. And before you flip out Hoglander isn't Miller, I agree, I'm just highlighting how much of a difference opportunity and surroundings can make.