3 and 12/20 of those games he shot 25% or worse from 3.
Yes, for the season he was closer to a 35% 3-point shooter, but that is primarily due to his blistering 44% from 3 during the first 10 games.
I'm not trying to knock Robinson's abilities at all. I'm just admitting that there were large stretches of the season where he really struggled shooting form deep (though he was much more efficient from 2 than he was from 3 during the latter part of the season). As such, even if a freshman Demin struggles at times (which I would expect him to), it's still plausible to see him producing at a similar level to what Robinson did last season.