A test that generates evidence or demonstrates a known truth, which Bard also apparently can't do, and which the marketing team didn't do before making this ad.
Oxford dictionary says:
“experimental is adjective.
1. (of a new invention or product) based on untested ideas or techniques and not yet established or finalized: an experimental drug.
2. (of art or an artistic technique)
involving a radically new and innovative style: experimental music.”
I don’t believe you didn’t known the meaning of the word but you intentionally twisted it. I find it a bit ironic.