The only thing that matters are the "Ays." The "nay" votes count for nothing.
So sure, his vote would have some symbolic value. OTOH, how many voted "nay" because Boehner gave them permission?
This is nit-picking. Ted did the heavy-lifting on the cloture vote.
Boehner is Speaker of the House; this was a Senate vote (McConnell is the Majority Leader in the Senate).
If only for the visuals, Cruz should have taken a later plane; not voting to attend a fundraiser is an excuse no one here would accept from someone they don’t like.