I hesitate to speak for them, but I don't think their mission is to provide content for people who already know what they want out of exercise, have been exercising for years, and understand what is and isn't good for their body. If you're experienced in fitness, the site likely isn't for you. And that's fine, isn't it?
Some folks have called out perhaps not understanding the funding issues with hosting a site so minimal. You're right, that part is cheap. It's the content creators, who are fitness professionals spending their time not working for money that need to be supported by the funding. They also do various outreach programs that of course require money to make happen.