The problem is that even the very rare quality work is meaningless, as all of it culminates in Rey Skywalker and that incredibly shit trilogy that ruins the entire Star Wars story. This is why it annoys me when someone wishes for some EU work to "become canon." Not only do they not understand canon, thinking anything "non-canon" makes it quite literally non-existent, even though it's really just its own canon, but they somehow think that it needs to be a part of the shitty Disney canon to be validated, when that'd just ruin it instead.
I agree with this, taking things from the EU and shoving it into Canon, doesn't mean it's the same thing as it once was. Taking an EU character and pushing them into Canon, the only thing you're really doing is moving the appearance and name, otherwise everything else is pretty difference because what they experience in the EU, is drastically different compared to Canon because of how the setting is structured. Thrawn for example in the EU is completely different in his story compared to Canon Thrawn, the Nightsisters in the EU are drastically different to their Canon iteration that it's honestly laughable that they can even be considered the same thing in any capacity.
Also it just shows that Canon has to use the EU as a recycling bin for material, which shows a lack of creativity on their part and also a slap in the face to EU fans. Which they've done that...a lot by this point and not very well at all.