It's what you consider nicer. I consider dialog windows to be a slow and frustrating way to configure anything and on top of that in this case it loses me the ability for my computer to do what I want it to when I close my lid.

And if it simply remained at that, but left me alone I wouldn't be so irate, but I don't feel left alone and “Who would not prefer a better looking desktop?” already borders on this “My way, of the highway.” philosophy of Freedesktop, whose developers all too often tell one that one's subjective likings are wrong and that one is somehow “wrong” or “outdated” for favoring a machine that is fast to configure and does what one wants.

It also doesn't help much that on a purely visual level there design choices look ugly to me, and that these are also the same people that remove theme options lest the holy “brand identity” be compromised, as well as that their design blasts too much bright white light into my face when I'm already tiring my eyes out trying to learn to read a language that's not written in a script I'm accustomed to.