To some extent this is already a problem with real meat, because almost nobody in the USA eats organ meat and it's particularly rich in micronutrients.
Basically everything we need in terms of nutrients (micro and macro) can be found in non-meat food products. Wherever a non-meat diet falls short of the needed micronutrients, multivitamins can be added to make up any deficiencies. Again, see vegans.
Finally, lab grown meat IS meat. Our bodies can break down and harvest any micronutrients grown into the meat. Furthermore, as developments are made, it's naive to assume the companies producing the lab grown meat won't attempt to add anything important which might be missing.
There's also precedent in the food industry for adding nutrients to food staples - white rice in America is legally required to be enriched. This point also confirms OPs concern is worth thinking about to begin with - the rice nutrient deficiency has caused epidemics in Asia. However, this problem has largely been solved.
Finally, OPs rant seems to start from an adversarial position. The arguments put forward seem to be in bad faith, as they are mostly distilled with minor research on lab-grown meat.
Example: vitamin C in supplements is only ascorbic acid. But the real vitamin C is a "complex" and contains multiple other vitamins INSIDE of it+ stuff surrounding the complex.
You cannot break down meat into minerals and vitamins if they don't have them in the first place.
I doubt anyone here has tried this product yet or seen any extensive analysis, so to say it's good or not good is pure speculation at this point. Laying insults atop an argument seldom strengthens it.
This belief is what caused the food to get so depleted in all micronutrients in the 1st place: because people aren't aware how important they are -> they don't care about them -> no one enforces rules for food quality in the micronutrients department -> food quality goes to shit over time.
White rice in the US is required by law to be enriched [1]. The FDA heavily regulates food in the US, leading to some of the highest quality food in the world.
Perhaps you don't live in the US. If you do live in the US, I highly recommend taking some time to learn about the things you talk about in online forums. Spreading BS around isn't helpful for anyone.