Wine makers can easily pick out flaws of different sorts. Wine tasters and wine makers do not taste wines in the same way based on my experience. Some flaws, like Bret, can improve the score of wines given by tasters for certain styles, but wine makers generally scoff at such flaws.
Bret and the weird hay / mousey flavour from natural wines are different things.
I too am not a fan of natural wines largely because of the additional flavours, but normal sulphite-laden wine can come with a dose of bret and it's different - I particularly enjoy it in some Cote Rotie producers, where it comes out as a hint of smokey bacon.
I would agree that brett can be a contaminant in wine, if that is not what you are going for, but much like how brett has long been the backbone of some trappist and all lambic Belgian beers, there is a case to be made for it in wine - even in fine wines.
If the popularity of brett in beers is anything to go by, you're going to be disappointed. And I hope you are - as much as I love a purely sach ferment, there's lots to love about other yeast and bacteria taking part in the fermentation process, too.
