AH, yes, the pay 90 dollars for permission to write my own game approch.
LOL Hardly! 5E is the first edition IMO which has HUGE "gaps" in the rules and feels like the designers simply expect groups to fill in those gaps themselves.
B/X and BECMI worked IMO without changing anything.
AD&D 1E was more of the "remove what doesn't work" edition.
AD&D 2E was the "we'll give you so much splat you won't want to use it all" edition.
3E I can't tell you, I played it less than a year in 2007, which wasn't really long enough for me to add, modify, or remove content.
4E I can't say since I never played it.
5E
is the first edition where the rules are
there (sort of), but feel incomplete.
So, I totally agree with your statement relating to 5E, but that's pretty much it as far as the editions I played anyway.