You entirely missed the context of that quote, which was preceded by "vegan meat replacements today, meat grown from cells tomorrow."
"Cell-grown meat" isn't what Beyond or Impossible are doing - what they are doing is "vegan meat replacements," replicating the taste of meat using vegetable sources. Neither company is trying to grow real meat from cell cultures in a lab, which is what you're talking about.
As far as I know cell grown meat is not quite a viable product yet (hence the "tomorrow,") but there are many companies and organizations researching the topic to try to make it a reality. In contrast, both Beyond Meat and Impossible Foods are existing commercial products that are mass produced and widely available in grocery stores and restaurants.
>In December 2020 its lab-grown chicken became the first lab-grown meat to receive regulatory approval in Singapore. Shortly thereafter, Eat Just's cultured meat was sold to diners at the Singapore restaurant "1880", making it the "world's first commercial sale of cell-cultured meat".
"Cell-grown meat" isn't what Beyond or Impossible are doing - what they are doing is "vegan meat replacements," replicating the taste of meat using vegetable sources. Neither company is trying to grow real meat from cell cultures in a lab, which is what you're talking about.