No I don't agree. They should explicitly say what the system can't do. People are guessing and they are making wrong guesses. Recently drivers have asked "Does FSD handle snow", some say it's great and therefore they're now risking themselves and others who listen to them. The answer is FSD does not have a snow-aware system.
There was a post recently where someone said "FSD responded to hand signals", whereas it does not seem likely that this is true - that was probably a fluke, and an assumption by the driver. Still, now some people believe FSD does respond to hand signals.
Turning across occluded or fast moving traffic does not seem to be safely possible at this time. Still, some people continue to attempt it, and when they see a success they say "see it does it just fine".
By saying nothing, Tesla is making an implicit statement that FSD "CAN" do everything, just that it "MAY" sometimes do the wrong thing. What they should be saying is FSD "CAN" do this (list), "CANNOT" do this (list), and then give their disclaimer about "MAY" do the wrong thing. Otherwise people are guessing about the capabilities, and guessing wrongly.
If Tesla says FSD "CAN" do a certain thing that does not mean the driver can be complacent because it still "MAY" do the wrong thing. But absolutely, Tesla should be saying what FSD "CANNOT" do.