Yes now a days the people are willing to use crypto and bitcoin is very important part of our lives so if you have crypto then you can use this for gambling and the crypto users are using this currency for gambling so when the price fall in the market the gambling also affected and with this the users are using this currency for gambling and other uses.
That was the problem back when the prices went as high as almost $20,000. People don't want to gamble with bitcoins as it is extremely expensive and the fees are so high as well at the time. Now that the price is relatively stable and that transaction fees are pretty low, I'd expect everything will go back to normal and people will start gambling with bitcoins again.