Nope, algo 7 makes all operators audible (when MIX is at 0) and in addition to that, A and B2 can be used as modulators too. From the manual:
The lines going to X and Y indicate the output from a carrier. There are two different ways a carrier output is sent to the X/Y outputs: 1. Its amplitude is unaffected by the operator envelope (dotted line). 2. Its amplitude is affected by the operator envelope (filled line).
As you can see, all operators on algorithm 7 have lines going straight to X and Y:
Straight from @Ess: