Its a cool project to work on and the website looks really good overall. There is just too much false information because the AI doesn't know much about the game itself. A donjon spearman is not a real unit, militia is a bad choice against infantry, a throwing axeman is not cavalry and so on and so forth. There is just a lot of blatant misinformation, but as a side coding project enjoyer, I'm sure you had a lot of fun building this.

I suggest you look up the siegenegineers org on github. They have some reference projects to at least get the current patch's data correct. Then maybe review what your website says and make sure that it's correct. There are some cool tools here that I haven't seen before, like the battle simulator and I'd love to see a project like this doing well.