Let's say there were 1,000 people in the straw poll. 100 picked Hunter as their first choice, 90 picked Rudy, etc. Hunter wins there.
Now let's say 400 picked Rudy as an acceptable candidate (even if 310 did not pick him as their first choice), 300 picked Romney, 250 picked McCain ... etc., down to 150 picking Hunter.
What it shows is Hunter has very intense support where he has it. But many either don't want him as a candidate or simply don't know anything about him.
It is difficult to believe that Hunter would be tied with Huckabee. The former has a devoted following and very few don't really like him while the latter has no following and no one cares. Not being "acceptable" means active opposition which does not appear to be the case for Hunter. The only real beef most have is his electibility not his acceptibility.