I think it's been demonstrated time and time again that with enough monetary interest, the public will happily gulp down whatever slop is thrown their way. If this can be supplied cheaper than real beef, I think the fast food corporations will switch to it. Sergey Brin throwing his support behind the synthetic meat movement has really given me a new hope for the viability of a readily available consumer synthetic meat product in the near future.
But your (and by extension, the public's) mental "cringe" is probably going to be a much bigger hurdle for them to jump over than the technology was.