Honestly their first concrete example, with fewer borders, is something that bothers me a lot on the internet today. Cool everything looks flat and like part of everything else. That's not hard to go down through a giant list of or anything... /s
It's also important to contrast the information density. Both the "bad" and "good" examples are quite readable but the one on the left is going to be more useful for larger lists of things.
I miss those days... Everything now takes countable seconds to load or do anything... I'm running a 3090 with a decent processor, and 32GB of RAM yet even some of the simplest things take so long anymore.
I miss those ugly forms days specifically too haha I personally prefer UX over any amount of design so I remember being so disappointed when Microsoft started introducing everyone to the concept of flat layouts that don't differentiate sections and just generally don't even look conceptually usable half the time. Give me ugly fast forms over looks any day.
I think you could apply their principles to add centered grayed dividers between the lines that don't go through the entire width of each row, maybe 80% or so
This or just alternating the background of each row between light and slightly darker colors
The goal was beautiful design, not good usability.
You gotta admit that it looks good, and eye candy is usually extremely effective for user retention, even if the alternative handles better, technically.
I don't have to, and I'm not going to because it looks like crap. Why is "Cancel" just a word instead of a button? And while "Invite" is marginally better, a rounded rectangle is not much of a button either and doesn't immediately signify "oh, I can click this".
I know some people prefer flat and featureless design (and there are jokes we could make about that), but that is very personal and tastes can vary widely.
Though in the interests of fairness I will admit that there are people who do feel that kind of thing looks good.
That problem exists in both versions though - i.e. making it more "beautiful" hasn't obviously affected the usability. But I can see at least one way in which it could - if shown on a wide screen and there were a lot of entries, matching up the "Team"/"Member" signifier with the contact name would be quite challenging. The lines in the orginal version may look a little clunky but do serve a purpose.
Styling to make it look like a button which is jutting out would signify the option for interaction to anyone who's ever seen a device with physical buttons, like a keyboard, smartphone, television, remote control,...
There already exists a convention of visual treatment to establish the appropriate expectation and differentiate items that actually do something in the event of a click on them, and it's the one specified in the comment you replied to. HTH!
Everyone knows how a button looks, and in case you’re sure that that is a button, I invite you to explain every flat ui to my older relatives, using only words.
I have trouble distinguishing the two as an unusable design is usually automatically worse for me but you're not wrong in making the distinction that they specified beautiful. I guess I wish people would choose functional/usable over beautiful or merge them in a way that doesn't sacrifice the one I find more important!
To be fair, I also just generally don't like the look of it without borders and stuff.