I agree with the dislike of penalties being less of a, well, penalty. I think they are 30 seconds so people spend more time on track? But, penalties are avoidable, they are not things you must get during a game, so I'm not sure the logic.
With jammer penalties there's a bit more give, as power jams are a bit rubbish, but for blockers? I'd be very curious to know the inner workings of who decided on the rules, and how they decided on them. Or in other words, I'd like them to show their working, the problem, the goal, and how they see this planing out.
Also, there's already ambiguity; with the jammer release on a "full" pass, is the word "full" there to mean 5 points? Or just completing a pass? If they mean a full 5+ point pass, jammers can intentionally get No Impact No Penalties, which would be a weird addition.