Hitting is not that hard in 5e. AC tends to be rather low. Many, many, many 5e games have almost no magical weapons, sometimes +1, often none. Not hard to hit at all. Players can gain Ability points (L4, L8) and gain Proficiency Bonus (L5, L9), while AC tend to be rather moderate.
I am NOT saying Larian implemented the rules well. No, I feel their design feels very improvised and it looks like a very early playtest in terms of stats / combat. But the argument about +2 swords in not really in line with the 5e tendencies. That varies based on the DMs, some of which might like the older D&D games where characters ended-up having their basic +3 kit (ring, weapon, cloak, etc.) and more.
Baraz, I think we largely agree and I think we're on the same side of this issue. You are right, magical weapons have been de emphasized -- the +2 is just one example among many.
But we're really addressing emphasis. Mechanisms like advantage / disadvantage. Inspiration points. Bardic inspiration. Bless. Etc are all buffs intended to increase chances to hit. Right?