Google is unethically abusing their power against non-Chromium browsers like Firefox. Speed matters in the eyes of users, even if we individually block AMP. See the link below for a general pattern.
Google just gives users what they want. I've checked the link you provided and the website is total wreck in terms of user experience (subscription popup, large obtrusive ad banners and so on).
I have push notification disabled but it wouldn't be surprise for me if they asking to subscribe for push notifications on the first page view.
Current era of content websites is a disaster except few cases like medium and maybe reddit with a discount.
AMP is an only solution for general users who just want to google a cooking recipe or latest news in their town.
https://www.zdnet.com/article/former-mozilla-exec-google-has...