Two problems. There is no evidence whatsoever that Maybin can block, run routes, catch a football, or anything else a TE is asked to do every play. Heck, he's not even good enough to run down the field on a kick-off for that matter. Second, it's not clear that the Bills organization even knows what the position of TE is nor why it might be a good idea to have one of them on the roster.
Nothing wrong with shooting imaginary bullets at illusional targets though.