That does seem most likely, and I would not count it as meaningful. They've also said before that they don't comment on individual pardons, though I can't think of a good reason for that.
In this case, though, the pardon itself would be a substantial piece of policy. I think it would be disingenuous and disrespectful of the administration to refuse comment.
I expect to be disrespected, but hold out some small amount of hope that they will surprise me.