On a different note, is +2 really a "small" bonus ? Here I'm not interested in the source of the +2 bonus, just the magnitude. If Advantage is about a +3.33, a +2 is still about 60% of that bonus.
Is an apple large? Everything is relative.
Friends is a cantrip that gives you advantage to all charisma checks for a conversation (in effect a nerf to skill based classes such as Rogue and Bard who are already nerfed by the issue of save-scumming). Bless is a 1st level spell that gives 3 party members +1-4 attack rolls/saves for 10 turns. Staff of Arcane Blessing is a early level "uncommon" magic item that gives the wielder permanent bless, +1-4 attack rolls/save, AND +2-8 on spell attack rolls (and this is a bonus that STACKS with advantage virtually guaranteeing "never"/seldom to miss).
I think we should bear in mind that there are a lot of people who complain about RNG, and this issue has been on the forefront of Larian's mind since before EA. Missing/failing is objectively not fun, nor is the save-scumming it tends to incentivize. However, Larian is likely over-correcting considering this would be handled, at least in part, by a working difficulty setting. Missing in combat could also be portrayed as the enemy dodged or blocked (if dex or shield is enough to make an attack miss) both to provide more variation in combat and to mitigate the sense of failure some people find hard to tolerate.
