Prepare yourself for very little numerical change from the Media Influencer Release

[rewd]

But they made the shields stronger (I think) on Pan/Haima to make up for the reduced duration.

They did make the shields stronger, but they also changed how remaining stacks work. In the media tour build, both the shield and the healing from remaining stacks had the same potency, meaning you'd always get the same overall potency no matter what. Now the remaining stacks only heals you for half of the shield potency, so you end up missing potency if you don't consume all 5 stacks.

With a 15s window, it's quite harder to consume every stack. It makes the skills a bit more interesting though, I'd say.

edit: to address your other question, yes. They moved the damage reduction to Holos and to compensate Pneuma heals a bit more now.