I'm also puzzled by this and I don't understand the argument of "cognitive load". Our brains are extremely adaptive and powerful, I don't understand how some different text formatting or background colors can be difficult to parse.
If all you do on the web is read news articles, then having an uniform experience is kind of desirable, but other than that, you're doing more harm to the UX by ditching modern browser support. How is draw.io rendering for you? How does the Bitbucket/GitHub/GitLab diff look for you? How's the YouTube watching going?
I guess those are different groups, but remember when everyone was complaining about all the sites using Bootstrap because they all looked too similar?
If all you do on the web is read news articles, then having an uniform experience is kind of desirable, but other than that, you're doing more harm to the UX by ditching modern browser support. How is draw.io rendering for you? How does the Bitbucket/GitHub/GitLab diff look for you? How's the YouTube watching going?
I guess those are different groups, but remember when everyone was complaining about all the sites using Bootstrap because they all looked too similar?