Justice and Rule
Legend
No, that's still not the same. Moving from a skill DC to a "challenge" is already an inversion is my point. DCs weren't assumed to move in relationship to the PCs at all previously outside of opposed checks, they instead signposted specific abilities. It doesn't make sense to talk about a "challenge" as tied to a skill check at all in that paradigm. The DC is effectively a level range proxy for when a PC will get access to new abilities.
It is already transformative to suggest that DCs can and/or should scale with level at all, and moves the skill system from a player facing tool, to primarily a pacing mechanism. 5e does the same thing more unevenly through a generic difficulty table.
You're making up intent where there isn't any. Leveled DCs are there to show what level proper challenge is for a PC based on their assumed bonus. DCs don't need to move in relationship to the PCs at all in PF2, but giving "Leveled DCs" for certain things that actually require them. In the GM Core (Page 53), they say they are for Earning Income checks, Recall Knowledge checks, and Identifying Spells, etc. They do not list all the situations, but we can see the clear intent: it's meant for something that is already based on level (Recall Knowledge checks are based on CR, Earn Income gives out a DC and money based on the Level you are attempting to hit, Identifying Spells is based on Spell level).
Now, what they do say that if you want, you can use Level-based DCs for obstacles instead of simple DCs. They mention the option, but say that you can simply use the simple DCs as well. Given how it's written, the intent is not for everything to be Level-based and advancing, but simply that you have the option of doing so if you feel it fits the situation. They are there to give granularity if desired, with an idea of where a player of a certain level will be and what DC they are expected to hit most often. This can even be found in the Skill Section, where they give Sample Maneuvers based on training, not levels.
There's nothing in there that suggests that it is suddenly only a pacing tool. You can use it however you like, and the system supports it perfectly well. But it works just as well if you want to simply put the natural DCs of the world and let the players approach it or do a "Everything is confined specific DCs set by level".