I used MWF soap for the first time last night. It was slicker than AoS or TOBS creams, but with a less dense lather. While I missed the density I get from creams, it might be just the thing for a multi-blade cartridge. Super slick and slippery, but easy to clear from the blades.
Not to mention that MWF can take some time to dial in. I'd be willing to bet that you'll get better lather on subsequent uses.
But I absolutely agree with your point, it is great with multi blade systems. I've got it in my rotation and it's worked wonderfully!