Does it sound the same to you or just have roughly the same volume? Using balanced into monoblocks should yield less noise and better channel separation. I would think that would be the main attraction. I recall a Steve Gutenberg video that compared 1 to 2. If I had a balanced out on my pre I would consider it for those reasons rather than any power requirements. I’m sure I already have adequate headroom with 1.
Found the video - https://youtu.be/mj6uuRFlRLs
Found the video - https://youtu.be/mj6uuRFlRLs