In principle, KONAMI are just too lazy to assign market value to the rest of the players, or just too lazy to implement an algorithm just like you said.
Every real player got a market value, except the ones who don't have nothing on TM. Well those ones should be given "50k" or "25k" as a standard...
I talked about created players. And about fakes players in NT such as some in UAE, Korea, Burkina Faso, i don't think they can assign due to (again) licence restriction. But yes, about the algorithm with ages at least, it really looks like lazyness but i checked and it was unmodifiable since PES 2014 in fact. Only introduced on PES 2020, probably for the future (we hope better)
They're lazy in many, many areas, it's sure, and nothing seemed really important for them with their "priorities". But about that (market value algorithm), i just think it's more the fact that the team in charge of Modes wasn't enough competent, or wasn't even aware about the issue at all / what i said is worst that just lazyness

so don't think i'm defending Konami at all cost, i said one part of the team isn't competent enough : i hope they've learned some stuffs since
It was actually doable, you finish creating the league and then create the competition, assign a calendar, assign some promotion or continental qualification and you're done. But I get your point about the fake teams (I don't want to give FIFA as an example but f*** it), KONAMI should follow its concurrent's steps.
Just to avoid misunderstanding @vialli82 , by "fake teams" you mean the "fictive teams" right ?
Yeah, like PEU etc.
I don't really knows the "creation centre" system, i downloaded some leagues like Turkey, J-League when they weren't in game, and some other more exotic (i think South Africa League lol). But i don't remember how does it worked. Yes, the calendar and everything should be editable. PEU/PLA/PAS are settled from the start > So they're a way to settle it > so there's should be a way to change it. it's as simple a you said.
Or they add a system to add a PEU league with X teams, or a totally "blank" league like 30 players by teams, and we should got the option to erase or add one player on that team / not linked at all with "created players" section : just others ID's. Because on some teams, you only need for example 12 players, like, i don't know Monchengladbach or Dortmund as the rest is on free agents or in Nationals teams. Same as i created Hajduk : only 7 players to create from scratch, the rest was in game (one keeper back to loan and one midfield in end June in more... 9 before that)
Otherwhise, i don't care that much as you for PES 2022. It's not that i will follow blindly, but i need a PS5, and i don't think to have one when the game will be launched. And i won't buy a PS4 version. My PC is also not too old (close to a PS4 standard... So)
Will check again and again if there's a destock. But i don't want to pay it 800 euros.