. That's not how statistics works either. This level of responses given this field of consumers has a 99% confidence level that these results accurately reflect the consumer population for these products. IE that 70%+ of the consumers of these products like the results of this playtest MORE than they liked the 2014 version (some of which was now scoring in the 20% region).
* Apologies if you hit these other issues already *
That would be how statistics would work if this was a random sample from "the consumer population of these products" (or however you want to say it) that all responded. If it's not a random sample and the nonrespondents missingness isn't just right ... well, then it's a whole sea of assumptions and could almost all all be garbage. (See non-presidents Dewey and Landon for some nice reads).
And if it was all the nice stuff, if they saw exactly 70% of their sample liked it, that would mean they were, say, 99% confident the population percent liking it was between 70%-something small and 70%+something small for a usual interval. The one sided thing would be that it was 99% confident the population percent was more than 70%-something small.