Ovinomancer
No flips for you!
I keep hearing you say powerful and diverse, but I'm not seeing it. I'm just seeing different. The complaint was that the GM has less ability to control the game because they introduced bounded accuracy so that the GM can't give out + weapons to "balance" play. I pointed out that the GM has plenty of power to control the game -- magic items where +3 isn't a big deal doesn't mean that the GM has less authority or that players have more ability to control the game. That's silly. Trying to argue that this authority is Calvinball is also silly. There's a place between your "much less power" and "Calvinball" where 5e actually fits in without bad faith play and the GM has loads of authority and power in that place.I disagree. The set of tools in question that were removed were powerful & diverse. Simply declaring that the GM can rely on "GM says" to makeup for that belies the never ending application of "GM says" as if it were something that could be a one & done replacement.
No, you've made a mistake of category. The +/-2 didn't allow the same thing that advantage/disadvantage does -- you could not get the same effect from +/- 2 as you can dis/advantage. Nor does dis/advantage do what +/-2 does. These are different things, both useful and powerful, and you can't claim dis/advantage is weaker because it's actually doing something completely different. Adding that tool is powerful, and never available before. It's not meant as a form/fit/function replacement of +/-2, but rather a complete replacement of capability.advantasge/disadvantage is one tool not two & it replaced a far more versatile set of linked tools that were deleted. I'm surprised that you didn't mention attunement slots too since they deleted & replaced the far more powerful & versatile body slots with slot affinities. Between first & 5th edition there was 1e+UA, 2e 2e+player options, 3.0 3.5 3.5+UA, & theoretically something called 4e with the d&d name. Modern d&d has all of those to change from. Why does every comparison of modern d&d need to immediately jump to 1e?
As far as 1e, that was introduced by someone else. 3.x certainly didn't have GM control over magic items as you suggest as a balancing factor -- it was a requirement of the math. A GM that didn't provide sufficient magic items was doing it wrong by the expectations of the game. I fail to understand how that can be put forth as a GM balancing tool.