Good for fantasy, bad for the NFL because the NFL isn't fantasy. You can't trust him to be a starter long term. That could change, but not in the near future IMO.
Second half of the season he was not even very good for fantasy. I think their schedule worked against him, as in not being in games vs opponents who could get them down and force them to abandon the run game. Still the preferred run heavy approach is a problem going forward. He went from a high floor, high ceiling consistent fantasy producer to a low floor, inconsistent fantasy producer but at least still maintains a high ceiling.
I think he's good enough to be a solid NFL starting QB but by solid I'm talking in the 20's. Great leader, intangibles off the chart, I think you can win some games with him and he'll help you build a culture but he has his obvious limitations. He's a very likeable guy but I'll go into the off-season with one of my biggest hopes being the Eagles see a chance to upgrade. Just don't see Devonta Smith or Goedert ever coming close to their potential with him as their QB and I'd hate to see that continue to happen.