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 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.