I hadn’t considered that. They may have been deleted, since they are single frames. It seems odd that they would be though, I haven’t detected any other errors of this nature so far.
Darth Lucas noticed that the lightsaber glitch frame was partially fixed in Ben’s hut. Similar situation. One of their test renders had the top of a jawa’s hood removed. These things happen.
But I admit it seems unlikely that the laser would be 100% removed without artifacts. Still, I don’t know of any other changes like this between theatrical and GOUT so it’s a possible explanation. Or, it may be real.