Thanks for bringing the article. I'm happy to see different opnions about the masters of music history, eventhough I don't always agree.
When that is said, I think it's necesarry to take Chopin in defence on some of the issues mentioned in the article.
No, Chopin was no ferfect man, neither was Haydn, Mozart or even Bach. As far as I know we still have an article from an old Vienese news paper saying that the great composer of the city, Ludwig van Beethoven, had to spend antoher night at the police station after - once again - looking through his neighbours windows with binoculars, in order to spot nude women!
Chopin didn't like jews, the author are gathering small anecdotes about his hate to jews - without telling us, where he got these stories from (neither I can't prove that the Beethoven story is true, but notice, this story is true "as far as I know"). Besides, antisemitism was very strong in Europe at that time, and I don't think his opinions where much different than for the rest of the population.
Chopin was jealous at Liszt, but Glenn Gould was jealous at Horowitz! Can it be surprising that even great masters can feel themselves "threatened" by other masters?
In the article we hear the old story about Chopin's bad orchestration. Yes, it could be better, but didn't Chopin write the two conerti when he was between 18 and 20? In comparison Beethoven published his opus 1 at 22! Furthermore he wrote the concerti at a time when he was trying to promote himself as a pianist, and the virtuoso piano part came first. No doubt he has been in a hurry writing the orchestral score!
What defines a great composer? Are you a great composer if you write a bunch of grand works? Many a terrible composer has written awfully many bad large-scale works, and no one wants to listen to it. On the other hand, Chopin is still popular in the recital programmes, the audience love his music, many young pianist as well as great interpreters spend most of their lives dedicated in playing his music. And, see how many composers who have been influenced by his works.
As for the women and his desires: Is it strange that a man is crazy about women? Artur Rubinstein is said to have had a mistress in every city on earth, did that make him into a bad pianist?
Afterall, this piece of unscientific musicological work should be put in the trash bin where it belongs, just as the music of Chopin (and Schubert for that matter) will remain in our hearts for time and eternity...