I think the number of magic items we find in Early Access content is extremely high, from the perspective of a D&D campaign. From the perspective of a video game, it's about right.
I ended up with 47 permanent equippable magic items at the end of my first playthrough, also having gotten rid of 12 to 15 others. So I acquired around 60 items just in Act One of the game (maybe not even all of Act One). A lot of them were unique, not merely +1 whatevers.
I would like to see more items from the D&D books in the game, though. As for items which have both a positive and a negative effect, I don't mind them. Makes them seem more interesting. I wouldn't want all the items to be like that, though.
What. That's almost ToB-level ridiculousness. And shouldn't coming across even a +1 item be a grand event at such low events?
Less items, more uniqueness, more flavour.