My scenario was only in the instance Alcantara was tearing the cover off the ball and the big league team needed OF help. Since it wouldn’t take up an extra 40 man spot, they could turn to Alcantara. Every team would rather give a kid like that the option than bring up a 30 year old AAAA player to be replacement level. A cup of coffee as early as next year wouldn’t have any detrimental effect on his development at all.
The extra option year means there wouldn’t be any rush if they didn’t want to. He would be, what, 24 if he just moved one level a year and would be able to have at least a full year in AAA? That’s actually really conservative. If a 24 year old has potentially played 3+ years in the upper minors and still hasn’t “clicked”, the chances aren’t great that it’s going to happen and you start determining his worth as a bench player.
Alcantara shouldn’t be untouchable for sure. But this “already on the 40 man stuff” is really getting blown out of proportion.