Bramhall plays a right handed guitar strung right handed while holding it left handed (low E on the bottom). This results in a unique sound that isn't conducive to "recreations" of the original recorded performances.
There are numerous studio quality guitarists that can faithfully imitate any lead. Waters choice of Bramhall indicates he wasn't overly concerned with "playing the album". Musicians will play leads several times in the studio, then pick a jam to go on the album. When it's time to go on tour most are quite irritated with the fact that they have to "learn" their OWN leads, but that's what the fans want.
Sorry for going off topic but the term "ruined" made me smile and reminded me of this persistent diversion between artists and appreciators. Artists want to interpret works, fans want them recreated.