Right UI design is not only about looks, but looks matter. As number of clicks matter. And then number of clicks vs time for looking on a screen matters. And also the time you spend the first time you use an app to find something versus the time you lose each time you use it again.

Want to find something with no clicks at all? Dump everything in a giant list and search around it for minutes

Want to run everything with a few key-presses? run terminal, but then it is impossible to imagine a command, you have to search on the net or a manual to do something you don't know how

Want to categorize everything specifically? You 'll need more clicks to get it.

There is always room for optimization though. Improving one thing without compromising the other. But as always optimization has it's limits. And then there is time spent on optimization vs time spent on implementing new features.

Finally a sleek and clean UI is easier on the users eyes, it's better for all of us.
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