But we are enough aware what is real techincal issue and what is lazy explanation. There are grown up peoples who are working as programmers or SI engineers
No.
I do not agree with your attempt to control the narrative here.
Your solution is awful. If static, unmoving long hair is implemented, I and many, many others will think it looks terrible. It will become a running joke that with everything else looking so good, "your hair looks like an ice cream". I've played plenty of games where static hair was implemented and it always looked awful to me. That is my opinion, for what it's worth, on what I consider a pretty inconsequential issue.
The answer given made it clear that they will not be able to implement long hair to the standard they would be happy with, not without pouring an enormous quantity of developer resources and time that they feel is more usefully spent elsewhere.
This is their game, and their vision. I'm happy to respect that.
I'm also happy to respect your personal preference that static hair works, and is fine, even if I express a completely contrary preference.
What really isn't okay is you trying to dismiss their very clear response with an accusation that they are both deceptive and lazy, just in order to sneak your preference in as fact through the back door. If nothing else, calling Frontier lazy isn't just poor judgement, it's utterly laughable. Do you really think that's going to fool anyone, let alone Frontier?
Also, do you think calling Frontier lazy and liars is a good way to make your argument over an entirely cosmetic feature in what is in the end a digital toy? I thought you just said you were a grown-up. Being an adult, is this a good way to engage with someone you are trying to persuade?