The issue is that accumulators are too simple; they require too little interaction compared to other methods of buffering or making energy. Tanked steam at least requires you to manage it, and since we don't have an electric boiler, you have to manage a burner (or nuclear) supply chain.

Even on ...

The shield should behave the same whether its in armor or a tank, Roboports, exoskeletons, solar panels etc. All do.

If the default behavior in player armor is to inherit resistances, then they should inherit in the tank. This is a bug.

>did you try turning it off and on again.

Have you checked the spacing between [copper plate] and pickup in the station name?

Ok, sure, if you hyper-optimize it, you can get a lot of throughput out of the cargo landing pad, but factorio is a game about a distinct lack of limits. They don't put limits on the amount of inserters you can craft, or the amount of launch pads you can make. Besides, physical hardware shouldn't be ...