But it's the Party. They can lie. It may be a
stated goal of theirs to implement Newspeak totally, but the reality may very well be that the program's execution in of itself is just a way of exerting control and subduing people. Whether or not Newspeak is REALLY implemented is not that important.
bastardized and incoherent language at least where higher operational thought is concerned.
Where was it shown in the book that Newspeak was incoherent? IIRC Newspeak had a complete scientific lexicon and it's grammar, while confusing, is not more minimalist than that of Classical Chinese, which is a working language.
In my memory it seems that Newspeak was used in a professional sense (much like Classical Mandarin was until 1911), while casual conversation remained in Oldspeak, with growing influence from Newspeak. Because Newspeak, being an invented language, would probably fail in the goal of completely replacing normal English, people would retain their old language. Newspeak is still an important implement of the Party because it is a great way of getting slogans to the populace and redefining many words in a subtle, comparatively flowing way.