Just because they found a better wording does not mean it confers a different meaning to the previous text.
At level 11, the warpriest's extra damage action adds 5 damage. Destructive action adds 1d12. Slight edge to Destructive, as its average is a little higher, and that damage would be maximized on a crit.
At level 20, the warpriest's extra damage action adds 10 damage. Destructive action adds 1d12. Extra damage action is ahead here, but on crits Destructive still gets a little more topend damage.
At level 21, the warpriest's extra damage action adds 10 damage. Destructive action adds 2d12. Slight edge to Destructive, as its average is a little higher, and that damage would be maximized on a crit.
At level 30, the warpriest's extra damage action adds 15 damage. Destructive action adds 2d12. Pretty much equal, warpriest has a better average, but you're getting 9 more points of damage each crit with destructive, and by this time you should have a 19-20 crit.
So in the end, if destructive is worded in a way that it gets to apply to all attacks, extra damage action should as well.