He did have several offers, but I believe they were all lower division teams. My concern with the highlight film is that they showed several passes that were intercepted which tells me they had limited game film to use for his highlights.
Since this next season will be his first playing in Arizona, hopefully we get a good feel for how he really is as a QB.
It should also be noted that the coaching staff will watch all of these players during the upcoming season, and if they do not live up to expectations, it is likely they would remove the offer. Far more offers go out then positions available.