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There's still plenty of progression, and Naxx/Ulduar are good precursors to ToC10/25 because ToC might drop Naxx equivalent gear, but there's a lot more chances to get gear in Naxx, and you can't gear a character entirely in ToC. (Unless you really don't get bored and only want emblem of conquest gear)
Not only that but ToC10/25 is the current most difficult raid in the game, which pretty much requires that you be armed to the teeth and know what you're doing. Trust me, I've been in it. So Ulduar is in no way useless atm.
60% and 100% ground mounts aren't really spectacular anymore, I see no problem with letting people get them at lower levels and cheaper, now you can actually enjoy having them for a period of time before upgrading to the next mount, rather than working your ass off for 40 levels, then suddenly going through mounts left and right without the chance to have enjoy actually having them.
They're also not getting rid of the stats, they're just moving them off gear. Now stats like that are going to be put in your talent trees. Each tree will have a few stats that it buffs for you, and when you put more points into the trees, the stat bonuses increase. There will also be a stat on gear called "Mastery" which increases the stat bonuses of your main spec tree. So they're not really simplifying the stat system, just simplifying the application of it.
They are balancing out pvp though, at least.
They aren't balancing anything until Paladins get weaker bubbles.