Despite all this wall of text the one thing voids everything: you haven't even tried the new OS.
And thinking that "knowing a thing or two about UI" makes you better than Apple… well, I'll leave it here.
"Apple is going downhill since Steve Jobs" and "this is a buggiest (i)OS( X) ever" got old years ago.
Just look up comment after any major upgrade of OS X. It will be a deja-vu. People compare the last x.x.xx release with tons of bugfixes to the y.0.00 and are so shocked there are bugs. Well, duh.
Just look up comment after any major upgrade of OS X. It will be a deja-vu. People compare the last x.x.xx release with tons of bugfixes to the y.0.00 and are so shocked there are bugs. Well, duh.