I would kindly like to make a small note. Although Arabic (because the Quran is written in it) is important and moreover encouraged for all Muslims to learn it is not that if you do not master Arabic you can not understand the Quran. Sometimes this impression is given to Muslims and non-Muslims alike. As if you do not understand Arabic or bother to learn it you will never understand the Quran or Islam.
The broad message of the Quran, lessons it tries to convey, reminders etc is perfectly understandable without being able to read it in Arabic. Pick up any translation of a Quran, read it, try to understand it by heart and ponder over it and the core message is clear. There are many languages such as Urdu, Punjabi, Turkish, Indonesian and nowadays English as well where you can find a lot of books explaining the context and interpretations of the Quran.
Nevertheless, to get to the core of the Quran and have a deeper taste of it's secrets (so to say) you do have to try and learn Arabic obviously.
The example above of Abu Hanifa and reciting in a non-Arabic language is indeed an example of a discussion that nowadays among many Muslims would not be able to take place without being burdened as a "deviant". Sad, but true.