This is an incredibly good point and I fully support it.
And, after what has happened with Jam... a certain service now seen as mixer and banned, although imho it was in a "gray" area (if we look at the rules in a strict manner), I feel that considering a CoinJoin coordinator as mixer is just fine (since gray area is no longer acceptable). However, keep in mind that my opinion on that matter may be biased.
Jam is an interface for using JoinMarket and it is not banned. There is no rule against non-custodial coinjoin software. Maybe you meant Jambler, which was banned because it effectively functioned as a custodial mixing service. WabiSabi coordinators fall into the category of still being allowed and I have already seen several threads for alternative coordinators like gingerwallet.io and wasabicoordinator.io.