Why did Pakistan's JF-17 fighter jet fail?

I don't understand how anyone can call the JF-17 Thunder a failure. it's the exact opposite. This has proven to be a big achievement so far.

Is JF-THUNDER made in Pakistan?

The PAC JF-17 Thunder was a joint venture between the Pakistan Aviation Complex (PAC) and the Chengdu Aerospace Corporation of China (CAC). It was intended to be a cost-effective fighter aircraft that could be used for multiple roles.

Why JF-17 is important for Pakistan 

 One of the main reasons why the JF-17 was so important to Pakistan was that it was to slowly replace and phase out the obsolete and old fighter aircraft still in use by the Pakistan Air Force (PAF).

It also reduces Pakistan's dependence on other countries for strengthening or maintaining its own air fleet. Let's not forget that the purchase of aircraft (such as the F-16) from the United States used to come with many conditions.

Another important advantage is that it helps develop Pakistan's own defense industry. Instead of having to spend millions of dollars of taxpayer money all going to foreign corporations.

The JF-17 Thunder was never meant to match or gain air superiority over the next generation top tier fighters. Like the F-35 or the Rafale. Comparing the JF-17 to these makes no sense as that was never the purpose of the JF-17.

So I would say that the PAC JF-17 Thunder has been a huge and a major success for Pakistan so far. Since it served its purpose very well. Over a hundred JF-17s have already been added to the PAF. With many more orders in progress. This will enable the PAF to retire many older aircraft.

The JF-17 has also caught the attention of many developing countries. Countries that can't afford to spend too much on one fighter jet. The lower cost of the JF-17 allows them to get more units at a lower cost. Which suits the needs of many developing countries. Nigeria and Myanmar have already signed contracts to buy them. Many other developing countries have also shown interest. For example Malaysia, Morocco and Azerbaijan.