Ah, you think by "Luna would eventually get smarter" they meant that the model backing it would, without retraining, somehow improve? I figured they just meant they'd use newer models as they come out.
However, if it is a scientific experiment, then changing a primary variable in the middle seems like bad thing.
I don't actually think it's a scientific experiment, of course, I think it's a PR stunt. So, they can change the model all they want. Nobody's learning anything from this that you can't learn without burning $100,000.