This is true, perhaps it could be added, since it seems like it is most traded altcoin on Bisq.
Recently we have been decreasing support for other base currencies, but adding Monero might really be useful. Not just since it is often traded, but because it might offer better privacy for trading on Bisq.
If multisig transactions in Monero offer the same level of privacy as other Monero transactions, it should be practically impossible for a bank to figure out if you are using Bisq for trading.
We should probably look into this more.