bashed patch, skyrim.esm leveled lists & xEdit

[Onikobe]

Hi,

right now i'm trying to get more familiar with the modding tools at my disposal, making more manual edits, since I hit a wall with automated processes on my extensive load order.
There is a lot I want to know, but right now I only got 2 questions:

1. Isn't it generally better to not include Skyrim.esm leveled lists into the bashed patch?
I mean if you trust that the mod creators of mods you use which contain changes to skyrim.esm's leveled lists knew what they were doing?

2. (actually some more, but all surrounding this one issue)
Can someone help me understand what exactly I am seeing here:

 

Does this just mean the info from plugin 1 isn't present in plugin 2 and the bashed patch (plugin 3) incorporating the entry from plugin 1 is just unnecessary, because it would have loaded anyways
or
did plugin 2 change the entry to remove the leveled list entry, so that it isn't loaded by the game engine, but the bashed patch reversed that change?

Thanks for any insight you can give me on this.