I can see why they have spiking it as penalty. It’s easier just to say that it’s not allowed at all then to have to try to find an arbitrary point. But, I didn’t think his spiking it was other than excitement over just having an awesome run and he was fired up. It wasn’t directed at anyone. But yeah, umps had to call it.
Without knowing the context and what was being said on the field I can’t say for sure on the second. That one gesture, on its own, I don’t think was flag worthy. But I don’t know what was going on on the field. Looks like they had a conversation before calling it.