Yep. They broke the game in 1e, 2e, 3e and 5e. Not sure about 4th. Some people don't mind games that are broken like that, though, so more power to them. They just shouldn't expect that sort of thing to be supported fully.
Your willfully ignoring how much pagespace those older editions devoted to players researching & crafing their own magic items in order to make that claim
Dungeon Master Option: High-Level Campaigns (Advanced Dungeons & Dragons, 2nd Edition, Revised) if you want to know... where several pages were devoted to that very topic. I did not "ignore that". Having the PCs go on an adventure to find/make the gizmo of unlimited doodads is not the same as having magical shops.
But we're not talking about TSR editions, for f***s sake! We're talking about WotC D&D. How many editions has WotC created for D&D? 3. And for two out of those, magic item pricing was an integrated part. Now it is not. People missing that points that out. They then get told what they want is badwrongfun and worse.
the xge "crafting" rules are a farce designed more to make sure a crafty player crafting stuff is an interesting opportunity for everyone but that player & comparing them to the 2e guidance on magic items & crafting is even worse. Magic item shops provide a GM options to avoid needing to be too involved in making every instance of crafting into a campaign hijacking fork from those more involved crafting options. The rules in 5e & xge fail at both of those paths in the fork giving the worst of both worlds in an edition that kicks things off by designing so feats & magic items are unsupported "optional" things that immediately throw off the system's math in awful ways the moment either are used.
No, you get told you are badwrongfun when you don't want other people to have a proper rules supported option of including magic item pricing, while you could just decide not to use it.
No it works out fine. There's a pretty significant difference between not using an existing well developed rule that you don't like & not having well developed rules for something you want to use because wotc has deemed it such badwrongfun that it must not sully the pages of 5e with supporting rules & rules structures needed for it.
I can pull from 3.x or even the old 2e stuff because I ran them, but the fact that 5e has both unsupported "optional" magic items and complete trash guidelines for a less experienced GM that can't fix the game to handle magic items while confidently building the missing rules structures when I'm a player at their table.
And for at least 1 of those(3rd) it made magic items a joke. PCs always picked the same few super optimal items and cheesed their way through encounters, having an even easier time than just the class abilities made it. Magic mart in 3e broke that system even worse than anything else in the game. CoDzilla was a much huger issue than it should have been due to stat enhancing items that PCs could just buy. They drove DCs through the roof.
