It's pretty obvious that the people who managed to extend the lifetime of Voyager are very smart, based on all the tricks they had to do.
They are remotely configuring an old-tech device that is billions of kilometers away, with insane lag, and uncertainty that the underlying hardware is even responding properly.
Absolutely anything could have gone wrong at this stage.
They'll anyway investigate internally what happened, in order to hopefully, find a solution.
There is no need to spend resources to make the material public, if the goal is mostly to satisfy curiosity (though it's interesting).
But that value is not zero, and replacing it costs quite a bit - both money and time. Asking how and why this happened is a valid inquiry.
For science, I would want to do an enquiry anyway - I'm just commenting on the financial/accountability aspect.