How did you infer that I think Robert is prone to slumping due to "a mental thing"? I said absolutely nothing of the sort, nor does anything I said come close to that. I also wouldn't agree it's because he's vulnerable to velocity or lacks plate discipline, because he showed both at times last year. I have no idea WHY he slumped, only that he was hot, then slumped, and our offense suffered a large amount as a result.
I'm also trying to project forward trends based on the only data we have. Otherwise you can't predict his performance at all, and I don't see how that's any different or makes anyone feel better about him carrying a large part of the offense next year. If he runs hot and cold next year or otherwise is not the player people are expecting him to be this offense isn't built to absorb that, as we saw last season, and you can't convince me Adam Eaton is the answer to that.