It's just poor writing. The "Internet style" dictates that if you can't put something in bombastic absolutes, it's probably not worth writing down. The clutteri

It's just poor writing. The "Internet style" dictates that if you can't put something in bombastic absolutes, it's probably not worth writing down. The cluttering up with qualifications, then, is a sign of honesty, rather than the opposite. In a more civilised age, the author might have written [Python's implementation of regular expressions is] really good and very interesting.