Per 5e FR lore, magic (both arcane spellcasters and items) is both very rare and low in power. A +1 weapon is considered a big prize, and a +2 weapon very rare. Anything greater is not even likely to exist let alone you having it in your hands. This is the result of the Spellplague having both decimated the ranks of mages and destroyed/drained the vast majority of magic items and especially the most powerful items. So if Larian sticks closely to FR lore, as they claim they are doing, then there should be no problem with magic items not feeling special. Getting my hands on my first +1 weapon in BG1 felt so incredibly special. I hope Larian can recreate that feeling in this game.
