I gotta stick to my guns and think if they wanted Flynn he would be in Miami. We'll see who is better on the field, Tanny or Flynn.
I agree, if Miami was sold on him to be "the guy" he would have been in Miami. We have all seen the reports that Philbin and Ireland just were not sold on Flynn being a major upgrade over Moore and a guy that is certain to build long term around. They wanted Flynn to sign for non-starter money and compete with Moore for the starting job, that is pretty obvious.
Which leads me to also believe that the plan for quarterback all along was to add a veteran to compete in the short term with Moore and to draft a quarterback to become the future starter. That means that even if they did sign Flynn, Tannehill probably still would have been drafted at #8. Flynn probably didn't buy into that idea and wanted to go to a place where he could solidify himself as a long term starter. Peyton Manning was the one asterisk to the plan as he would have came in as the flat our starter with no competition. Still possible that Tannehill would have been drafted even if they landed Manning. That was actually reported as being the plan by NFL Network back in February.
So once Manning was out of the picture it was to find a veteran who would compete with Moore for the short term, while grooming a rookie quarterback for the future(Tannehill probably was always at the top of their list). Flynn was the initial preference to be that competing veteran because of his relationship with Philbin. I think the backup choice was probably Garrard, but Smith probably was a choice they didn't expect to be available, so why not kick the tires?
So, in my personal beliefs, Tannehill wasn't drafted because Flynn didn't sign him. Garrard was signed because Flynn didn't sign here, Tannehill was always in the plans to come via the draft. Flynn saw a better chance to be "the guy" in Seattle and they offered more money, so it was an easy choice. Now though, the Seahawks seem to be seeing what Philbin and Ireland saw in their pursuit for him in free agency.