I guess it really is no secret at this point, but the way this game uses height, sightlines, stealth, and AI create the perfect storm where using anything but ranged combat is a huge handicap, if not suicidal. If you can find a hard to reach high ground you can simply shoot/hide/repeat and kill all your enemies. Goblin camp? No problem, can even be done solo by a good ranged class, but it will take a long time. Melee, you won't last 1 round before you become a pin cushion or a blood stain from critters that are so much more effective at melee than the PCs. The huge number of AOE attacks, terrain attacks, etc... by the AI just magnify the problems created for melee. Monks are pointless because they have very little in the way of ranged options so they are just mulch waiting to happen, whereas at least warriors, paladins, rogues and rangers can use bows. Even when it comes to melee, it's better to have thunder wave, eldritch blast with the repelling invocation, shocking grasp, or thunder arrows than it is to go head to head in melee. And another poster that was commenting on whether cantrips are OP isn't all that wrong, the secondary effects of fire blast and ray of frost are insanely good and still have potential to do something even if they miss. Miss a melee strike and you can forget it. Lastly the height advantage on ranged attacks are BS because melee really doesn't have any usable equivalent manner of improving their accuracy. Heck I specced my fighter into eldritch knight because I realized quickly how useful even a few spells are.
I think this is potentially a major issue if it isn't fixed unless we are looking for a wizards and warlocks simulator.