The article makes a bunch of points about economics, and those may be true now, but there are many products widely available today that were at one point considered impossible to produce at significant scale.
That said, I think the article raises a few fundamental limits that probably cannot be currently overcome: 1 - animal cell division times are far too long, and 2 - animal cell cultures would be highly susceptible to viral and bacterial contamination, which could completely kill an entire culture. It seems like we could genetically engineer our way out of these problems, but a tractable solution is probably decades away.
That said, I think the article raises a few fundamental limits that probably cannot be currently overcome: 1 - animal cell division times are far too long, and 2 - animal cell cultures would be highly susceptible to viral and bacterial contamination, which could completely kill an entire culture. It seems like we could genetically engineer our way out of these problems, but a tractable solution is probably decades away.