It is 13 : 2 on the turn, Which is 6.5 : 1. Hero has 8 outs maximum, his implied odds when a 7 fall are 7.5:1 and this is only when he doesn't lose to the flush or a better straight. His implied odds are only big when a Q that doesn't complete a flush falls.

If it gets capped, which it did, that is only 5 : 1 which is barely enough to call with 8 clean outs.