You might explain this better to our American friends by reminding them of the fact that they have a highly commercial film and TV industry, where the profit and loss of individual shows is monitored very closely.

What works gets repeated and hence the industry is highly formulaic, with those in control of the money going for the explainable and repeatable.

That is not the case in other countries, where the lack of business sophistication has given more room for the creatives to flourish.