While I don't disagree in principle that the more data points you have the more appealing an experiment is, someone could still find your test of little interest because they don't care about those films and/or developers that you've chosen ("how about Rodinal?"), or only shoot under studio lighting, etc...
I believe it's difficult to find an experiment of general appeal, unless you maybe you have so much time and different materials that you could write a book about of it
So I hope that my "little" one, very focused on a single film and three different developers, still has some use for someone