I wouldn't mind random magical items if the unique ones all have fixed locations. I really hope they go wild with the magical items, since 5e severely lacks in this department.
NOOOOO ! ! !
DnD rules are good because it takes some time until you find some magic items.
I do not know DnD 5E, but BG1 was great. You start with cheap equipment and it takes some time until you find your first magic item. You can go anywhere, but most enemies would kill you right away, even a lone wolf can be deadly for a lv1 char. You have to find companions and some easy enemies or quests before exploring some of the more dangerous areas. Finding your first magic weapon+1 felt importent, finally your weapon could not break anymore and you are able to damage some enemies at all. Getting the longsword+2 with +2 ice damage felt as impressive as getting the holy avenger in BG2. At the end of the game you had lv 8 - 10 (depending on your class), +2 equipment and you could beat some powerful enemies, even demons.
On the other hand, look at D:OS2. You are a wizard and you find an epic staff with +int and +fire skill. Your reaction: "Well, thats nice but next level I find a lengendary weapon with twice the stat bonus. And I would prefer a bonus to lightning damage and it does not cause a burn dot on hit."
So magic items should be rare, expensive and placed by hand in locations where it makes sense.
Magic items with unique abilities should only be found after beating a very hard boss, in a secret chamber in a dungeon full of traps or sold at the black market for an extremely high prize and you have to do lots of efford to learn about this market, find it and enter it.
Prof. Dr. Dr. Mad S. Tist 
