Ish. It’s usually more useful to test hypotheses about why something is. If that something isn’t then you can’t get an answer & will often demonstrate the counter-factual.
Simple “we confirmed water is wet” tests are not very good science. Whereas “what is wetness & why does it happen” is.
"It's just common sense" is not a solid scientific proof. Testing something that we _think_ we know (but have no proven) is not a bad thing.