But they still got alternative way for this matter according to them, in which are
Transfer method and Virtual wallet method.
Yes, bet365 do not accept bitcoin and not accepting any other crypto, they only accept fiat. PayPal would be a very good alternative but if it is accepted, I do not think OP would create this thread. Not all countries that accept Paypal, there are some countries that you can Pay with PayPal but people can not pay into your PayPal account, though I do not know if it still work like this in some countries.Transfer method and Virtual wallet method.
yes maybe because they feel that without using crypto payments their sports betting site is quite crowded, to be honest their website is more interesting than the casino websites that I saw on crypto apart from a lot of features and also a lot of sports matches there, I think maybe in the future they will add it when bitcoin and other cryptos are gaining popularity again 
Their website is more interesting and simple to use even for newbies, that is one of the things I like about their website, I like it for just in-play. For casinos and matches that are not in-play you Indo not have to check the stat, I do find crypto gambling site enjoyable.