First of all, it's an internet survey of 2200 people. The data is garbage and you can't conclude anything from it. Huge error bars. I didn't lean on that point above, but it's fundamentally true.
Second, even assuming that the number is correct, who says it's a "big problem"? Rabies is not like the flu -- it requires direct, intimate contact for transmission. If the pets in question (like most pets) never meet a wild animal in their lives, the chances are high that it won't matter at all. Your main worry is dogs catching it from other dogs…but at a 90% vaccination rates and a rare event profile to begin with, that’s incredibly unlikely.
I grant you that it would be better to have 100% vaccination rates, but I doubt we’ve ever actually had that. Badness is relative.