Robinson I had at a six but gave slightly higher as a few of his goals/assists came in close games that ended up being very important with the teams chasing us. 11 goal involvements from 40 appearances total doesn't sound like much, but considering just how many of those would be 10-15 minutes off the bench I think he's done well with limited chances.
Colwill on the other hand spent a long time coming back from injury, but ran the gaff before he got injured and Kellyman came in. Oftentimes he's been the only spark for us offensively and his tricky feet have gotten us out of a lot of high presses when we've had limited cover behind him. Although he did get 14 goal involvements this year in 31 games for us (roughly 1 in 2), he's also come back from a major injury and we had a big slump in form when he was out of the team which to me always shows how important a player is. Also, averaging 7.3/10 across a season is no small feat - only players higher than that are Bagan and Ng who both had a serious chance of being our player of the season themselves.