Not normally, no. If someone isn't ready it can be damaging for a career.
Granted, it's a very small sample size and he did have a layoff, but so far in Utica he's not scoring and from the little information available there's no reason to believe he's dominating on faceoffs. He may still show he belongs after his conditioning stint, but it's hard to understand him being pushed to the NHL unless and until he shows he belongs.
Really, I don't understand the wish to rush the kids before they're ready.
A quick sample-look at the 2010-2011 Canucks. Most would probably agree that was a good team (win the President's Cup by 10 points over the runner-up, made it to game 7 of the Stanley Cup Finals.) That team had only two players who played a sizeable number of games in the NHL in their 19 year old seasons, neither of which was an NHL regular at 19. They were:
Ryan Kesler-28 games in Vancouver (5 points, -2); 33 games in AHL and 6 games at the WJC.
Manny Malhotra-27 games with NYR, 0 points, -6.
The rest of the players on that team spent their 19 YO seasons developing in the minors, junior or Europe.
Players take time to develop. One must be patient.
Yes, there are certainly exceptions. TL was one-drafted 2nd overall from Medicine Hat as a very mature player with scouting reports suggesting he was captain material who had in his draft year at 17 put up 110 pts in 67 games in his 4th season in Major Junior, and who stood 6'4.
By contrast, in his draft year Horvat, who stood 6'0 or so, put up 61 pts in 67 games (same number of games, 49 fewer points)-in his second year in Major Junior. In his draft + 1 year, his third in major junior, he scored 74 pts in 54 g-for a ppg ave of 1.37 compared with Linden at 17 at 1.64 ppg.
Will Horvat be ready by the end of his conditioning stint and tryout? I don't know-we'll have to see how he does. It simply is losing hockey, though, for a franchise to rush its young players to the NHL before they show they are ready.
That is quite aside from the question of whether to burn a year of the ELC and make players eligible for free agency earlier.