"I talk to Mr. Miyamoto regularly about 'the next Zelda game,' and one time, he asked me if I could come up with a game that features Super Mario Maker-like gameplay, but for Zelda," Aonuma said. "We talked about how a game like this for Zelda would have dungeons, but it's generally quite difficult to devise the logic needed to solve them."
"So we gave some thought into a more approachable style of play where you have to think about how to arrange parts that already have a solution to create a single dungeon, instead of allowing players to create complex arrangements like in Super Mario Maker 2, and that's how we created the Chamber Dungeons for this game," he explained.
"Given that the Chamber Dungeons feature is based on using rooms that already have a solution, we went looking for examples from existing titles, and found that the dungeons in The Legend of Zelda: Link's Awakening would be the most suitable, because each room is usually the size of a single screen, and seen from a top-down view this makes their layout easy to understand," he said, noting that "a critical part of the Chamber Dungeon gameplay is understanding the original dungeons before arranging your own."
Aonuma also talks about why they kept Link's 8-way movement instead of analog movement:
"Link, the playable character in the original, moved according to digital input in eight directions: up, down, left, right and diagonals, and the entire game was designed around that style of movement. If we were to completely replace that with analog input to allow free movement in all directions, we'd also need to redesign the gameplay itself, and the way the game feels and responds would be entirely different," he said. "So, taking into account that it's now possible to move seamlessly around the map, what we did is keep the original movement in eight directions and made some adjustments to the game overall to make sure the feel and response don't differ too much from the original."