Some people think Groome is 1-1 talent but not all agree. And part of making it to the majors is factoring in other issues including make up. Teams value those risks and act accordingly. I don't know what the issues Groome has are but others do. Keep in mind that HS pitchers aren't the safest bet in the first place, I'm not sure I'd throw my draft into chaos to take this guy. If we draft him with plans to give him more than slot, we have to know he'll take it, otherwise we wasted those picks. And if he's telling us he won't sign for (example) less than 4.3m, they might want to use the money on more players.