Not only is the address reused, but to break the link between the sending and receiving address, you need to trust the mixer to keep your coins for a longer time, and the withdrawal is random, no matter how good the mixer is. If you withdraw directly from the deposit address, you reduce your privacy.

I wonder how long the mining campaign will last, because in the future users will be forced to leave their money at the mixer for a longer time, and the mixer will not be able to pay them. without reward payment or high deposit volumes, I do not know if this goal will be achieved.