If Mistral is aiming not to grow to infinity but instead to offer niche models at reasonable prices, should they give up now? I think I'm not sure what exactly you're saying.
There are a whole lot of commodity businesses that flourishes and that are profitable. It's true, that, yes, they will not have huge margins.
Grocery stores are like that - some of their suppliers might be subsidised but they are not, and many places they operate with typical margins in the 2% range. Discount supermarkets in the UK are operating on around 0.7% margins.
They are still huge, profitable businesses.
And they are examples of what happens when markets work.