It probably should count for something. I say, bring him up.
That said, you've been here long enough to see people clamoring to bring up this guy or that guy, only to want him and Hinch to walk the plank together when he flounders, so unless he comes up and rakes like Kerry Carpenter, I'm not sure it would be any different for Parker Meadows. If he did put up a 75 or 80 wRC+ to start with, I don't think people would be saying, well, at least he's better than Baddoo so I'm happy (whose wRC+ for the season is 83, BTW). I think they'll be more like, why didn't Harris sign a big free agent hitter this past winter??