I enjoyed the video. I didn't expect for each load to have at least one round exit the gel considering the lower velocities of the 147/150 gr and the short barrel, but good to have a test that shows it either way.
A while ago, a buddy made a ballistic gel block and we tested some various loads on it. The test didn't turn out quite as expected as the gel was darker/cloudier than the samples in this video, so we had a tough time telling the penetration depth for each individual rounds. The gel block was actually pretty expensive to make, so I don't see us doing that again. It would be good to test various loads, calibers, clothing, etc, but that's more for a personal "show me" curiosity as opposed to testing the performance of current JHP ammo.
I would love to have a backyard like that where I could set up a steel plate and some paper targets. The night shots were interesting to me as well since I don't get to shoot low/no light very often.