The only thing I'll say to this is that it doesn't indicate the problem some people think it does, nor does it indicate the solution.
If Democrats try to appeal to people with simpler imagery and wording (which some definitely have), they still wouldn't reach the rabid, indoctrinated people that Trump/MAGA have conditioned. That group will simply ignore it as propaganda and "fake news".
A big chunk of the electorate are simple in need and observation, but they are also ignorant of how they perform self-harm and, in many cases, deliberately cruel or indifferent to their own needs in order to hurt others. Catchy slogans won't move that needle.
That said, a simpler approach will reach some people. And "dumbing down" the facts of the matter is probably a better approach in some venues. But this isn't an apples-to-apples comparison, as far as I'm concerned.