I kind of agree with this (having played only 3e and newer editions). I like that in 5e magic items are really magical. My players really feel like they have something special when they get one. That said, it makes a slippery slope when DMing. How many are too much? How many are too few?It's actually one of the most magic item impacted editions. The reason for so few items in published adventures is that the 5e math doesn't take magic items into consideration at all, so they are pure bonuses that serve to increase the PC power level. Too many and it will unbalance the game considerably.
3e and 4e were christmas tree editions, because you had to have those items just to keep pace. I hated it. Magic items should be special and additive, not required for a treadmill.