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"extremely wordy" is not a valid reason to discard a toolkit, I could write your statement as "it makes code easier to read", now convoluted? how so?.
Yes it is. If there is more developer friction in getting up and running vs another technology, its a legitimate complaint.
Qt may not be perfect, but you can be plenty more expressive using Qt than you can using GTK.
You are confusing the GNOME project with GTK, is not the same.