You might. But every time Blizzard has tried this, they’re met with howls of complaints that it’s too hard.
Solo players: “We want challenging solo content!”
Blizzard: “Here’s Mage Tower.”
Solo players: “IT’S TOO HARD!!!”
Solo players: “We want challenging solo content!”
Blizzard: “Here are Horrific Visions.”
Solo players: “IT’S TOO HARD!!!”
Solo players: “We want challenging solo content!”
Blizzard: “Here’s Torghast.”
Solo players: “IT’S TOO HARD!!!”
Solo players: “We want challenging outdoor zones!”
Blizzard: “Here’s The Maw.”
Solo players: “IT’S TOO HARD!!!”