Let's face it, you can't really help the playerbase improve when you (the devs) create a whole game where the design doesn't gradually become harder as you go along. In fact, it's the reverse. It's why people bail in dgns like AV because most of the game has pretty much killed all extra routes to any sort of difficulty whatsoever. It's also why when people step unknowingly into savage/ex, they get destroyed. Sure, you get told it's gonna be hard but let's face it, if you went from regular dgns which were a piece of cake, then you step into expert, which is also a joke, the warning just seems to come across as an affable notice at best.

Before we can start talking even about parsing, the devs either need to create, moving forward, dgn design that actually pushes players (which, tbh, the playerbase in general doesn't favor at all) or actually work at forcing "educational" gatekeeping features in the game. Examples of that could be: Intermediate and Expert Hall, Forced SSS clearance, etc.

Let's be real though: SE is fully aware they could do more but they also know their playerbase. They know if someone actually wants to improve, they have all the means (minus ingame parsing) to do it. That's why they'll never opt to force or even remotely help people ingame because they're also aware there are just as many people who actually don't want it.