I took a look at its trading volume and it's shockingly low. Under $100,000 on Binance. Low demand and a huge circulating supply means it is expected to see such low prices. The token burns have not really had any effect since the amount burned was so small.
That's because there is still too few people playing at FUN casinos unfortunately. They don't make much marketing for those casinos, so they are not known by many gamblers except freebitcoin users for now but more people can come in the coming months. Furthermore FUN tokens price is currently very low in BTC, so some investors can buy it