Both Aom and Anne have different styles. Perhaps to us, Aom's lakorns aren't as successful as Anne's but perhaps to Aom, they are. Thus is why Aom continues to use Vill after Ngao Jai. If Aom didn't see something in Vill, she wouldn't continue to use Vill. In terms of being cold cut and dry between personal and business, Aom is more solid than Anne. Anne is sweeter.
It's not that Aom and Jieb don't want their company to grow...they are producers who produce lakorns based on what they see fit. They are doing what makes them happy, not necessarily to please us. They have their own artistic touch, which may not be universal.
Plus, One HD doesn't have the power house celebrities like Ch. 3. All of the award ceremonies which are jokes are all biased towards Ch. 3, so their lakorns will naturally be more widely known, popular, and even critically known in awards. Lol