If the process of growing cells becomes easy to do, fast, and cheap then there is no reason to not do it for food. Funny thing though, some people are already angry about GMOs and those are no big deal compared to such a thing. Will the majority of people accept it? I'm like Hawkmoon and would welcome it.
No one knows what the medium and long-term health effects of GMOs will be, and yes, this type of synthetic meat poses those challenges as well. Every technological, molecular, medical change, etc ... should be studied, analyzed and evaluated before putting it on the market and in society. Which has not been done with covid vaccines, by the way.
On the other hand, the complaints with GMOs are from farmers who cannot own the seeds and who are basically Monsanto's slaves. Other farmers have seen that their fields have been invaded with transgenic seeds. Ultimately, this scientific improvement has not reduced the price of food or helped eliminate poverty or food shortages around the world, as its promoters promised. This is more of an economic / political problem and power struggle than a health problem.