Be careful of arguments of the type 'Tausig was a great pianist, therefore his exercises should be good'. Thalbergmad is not really claiming this anyway, but it's maybe worthwhile to point out the dangers of this argumentation to people who might take it seriously:
a) The suggestions of extremely talented pianists like Tausig, Liszt, Godowsky etc. are not automatically the best source on how to get a good technique. Two possible problems with their suggestions:
(a) They might recommend what they hear other teachers saying, which could be anatomically ill-informed rubbish (e.g. Beethoven told his students to use the fingers-only and fingers-close-to-the-keys method but used arm weight and flying arms himself), or
(b) They might recommend what they did while learning 'cos it seemed to work for them. This is irrelevant firstly because different techniques suit different people. (Tausig told students to play octaves wrist-only, reasoning that his octaves were good, therefore his method is the only one, but other good players preach either arms only or mixed wrists & arms.) Secondly, it could be that the feats of a talented pianist were possible IN SPITE OF rather than BECAUSE OF the methods they learned with. E.g. Rachmaninov was a great pianist, but there was a link posted a while ago describing the silly teaching practices at his conservatorium: For a few years, the students were only allowed to play Hanon, and part of their 'learning' included having to memorise the 'numbers' of the exercises. (Their 'examinations' took the form 'Play no. 9 in F#, no 17 in Bb, no 26 in C#'...) A farce. One wonders how Rach managed not to become a musical idiot in this environment. Probably his talent helped him to master Hanon so quickly that it didn't get the chance to kill his musical sensibility. It clearly wasn't Hanon that taught Rach to play Schumann's Carnival so well.