Well, besides the issue of shari'ah which was more a zeitgeist of the times (almost every rebel group adopted harsher shari'ah, opposing themselves to the "moral decay" that were perceived to have prevailed under Chinese rule), the high taxation and economic collapse are almost inevitable no...
This is just floating ideas for the possible Central Asian consequences of my Chosŏn timeline I talk about here.
If you're not aware of who Muhammad Ya'qub Beg is, Wikipedia is your friend. For more academic purposes Holy War in China: The Muslim Rebellion and State in Chinese Central Asia...
Actually, I have no plans to make Korea "modernized" like Meiji Japan besides some limited military reforms as a response to the Qing failure in the two Opium Wars and the general disintegration of China. There will be a significant sociopolitical change, but that will be a response to the...
The POD would be that Crown Prince Munhyo, who in the real world died at the age of four during a measles epidemic in 1786, survives to be a competent ruler. The timeline ends around 1880 as Korea begins to make formal contact with the West, so the posts will generally stay in Korea (it might...