Sam2: What I am see is that people still disagree about cheese (some kosher Yidden insist on vegetarian rennet, others allow even rennet derived from a treff cow, most are in the middle), and it is wrong to say this is settled.
The possible “meat” in question will be debated. Some people will definitely hold that the stem cells come from a kashered slaughtered animal and that the product is fleishig. Others will probably be less fussy. It is unreasonable to expect a definitive agreement to be reached any time soon, since we like to debate such matters.