I think it runs contrary to the whole notion of Master Smith quality work.
All of my forged blades are forge finished (as Karl pointed out, brut de forge seems to be a somewhat variable term that can mean forge finished or Joe Keeslar's particular style), so I'm sure my tastes are immediately evident.
Also, I am not a member of the ABS, and a lot of my work is aimed in a very different direction, though I don't hold any animosity toward the society, and have nothing but respect for the skill of those with their MS and JS stamps. I know I'll personally probably never meet the requirements to be a Mastersmith, but that's ok by me. I'm aimed in a different direction.
That said, I think that the notion that forge finish or brut de forge is necessarily of lesser quality is wrong. It can be; so can a mirror finished blade. And I don't think that once you attain your MS status (with a lot of work and dedication) that it means you have to make your knives a certain way.
The whole notion reminds me of an art professor I had in college who declared that he was considering banning the use of flat black paint because it limited creativity. There were about three students building art bike projects inspired by motorcycles and hot rods, and he didn't agree with their taste. In this case "brut de forge" doesn't meet your taste, so an MS shouldn't make it.
Frankly, in my taste a lot of ABS knives look too much alike as is. Just looking at pictures of the MS quillion daggers (without getting to examine them up close), the biggest difference between a lot of them seems to be whether they went with a black handle or a white one. Rodrigo Sfreddo and Samuel Lurquin's quillion daggers are two that stand out from the crowd, and I love both knives. I'm looking forward to seeing what Mardi Meshejian comes up with when he goes for his MS stamp.

That doesn't mean I don't look at ABS knives; I take 'em individually, and some get skipped over pretty quickly and some get drooled over, as I'm sure happens to my work as well.
One of the things I like about custom knives is that they can be approached from so many different directions. Same thing with one of my other interests: custom cars.
Some like high-end show cars.
Some like lots of carbon fiber.
Some like rat rods.
With some aggression to them.
Sometimes there's no accounting for taste.
So I'd say that if forge finish/brut de forge blades aren't your style, don't look at them or spend money on them. But don't think that it is necessarily inferior, or that a Mastersmith shouldn't be proud to put his stamp to it.