I know you feel, but tbh, the chance Nintendo will set up eShop/Online Services for Hong Kong, no, Asia region is pretty minimal IMO. Asia region was never a main focus for Nintendo. Especially after Hong Kong/Taiwan 3DS big flopped I really doubt they are willing to invest more services for these regions... Hong Kong, alongside with Singapore and Malaysia. Even worse here in Taiwan which is supported by Nintendo Hong Kong (Since Nintendo Taiwan no longer exists) still has no official Switch release, it's pretty obvious they don't really want to put much effort to Asia market.

Yes, there're still very few games having Traditional Chinese support for some reasons, but in reality expecting Nintendo full support for Asia region is just unrealistic.

By the way, having no eShop support is not a bad thing. Players from no eShop support country have the ability to buy games from any country. If a eShop exist in your region your payment method will be restricted to your own region, meaning you can't use your credit card on other region. This is why you see people saying thier US credit card not working in JP/EU eShop.