I had the same thought the moment I read the article. Also, is the QR code printed randomly on the tint film, or is it just a sticker? If sticker, you and I know what follows next.

Not true. It's a matter of whether the suppliers want to bring them in or not.

In Singapore, the minimum permissible VLT levels are: 70% for front windscreen and both front windows, and 25% for rear windows and rear windscreen.
(Sos )
The minimum VLT allowed for rear windows/windscreen was even higher before it was brought down to 25%. Even then, cars with tinted windows/windscreen had no problem passing their mandatory vehicle inspection.
FYI, in Singapore, news cars need to be inspected after 3 years, 5 years, 7 years, 9 years, followed by yearly if they are used beyond ten years.

Reason for posting this? There are films manufactured to meet the regulations by big names like 3M, VKool, and whatever.

This, I can agree. Conti cars, especially, tend to have tinted glass. However, it does not apply to all cars, and this means there are films that can be used legally on other cars.