There's another good reason not to call it CASE:ANY with Dialected Function Calls...
That's because CASE/ANY will have meaning: "call ANY on the conditions of each line of the case".
case/any [
[1 = 2, 3 = 4] [print "Math is broke"]
[1 = 1, 2 = 2] [print "Math works"]
]
So I think :MULTI will suffice.