It's absolutely justified to pass off the information that according to our best current knowledge is the approprate recommendation as of now - the fact that kn

It's absolutely justified to pass off the information that according to our best current knowledge is the approprate recommendation as of now - the fact that knowing the underlying correct information is difficult, and noone knows for certain if it's entirely correct or there are more nuances to be found doesn't mean that we should just shrug and act as if we have no information whatsoever. We do have some data that allows us to make useful decisions that are more likely than not to be correct. As long as that's the best we have, we should use that information.