So doing the daily achievements is somehow grinding now?
On topic of infusion:
You will also be able to put infusions in the ascended gear from laurels, yes!
(source is BladeDVD's dev tracker link above)
It makes a certain amount of sense that the laurel-purchased items don't have agony resistance, since you didn't get it from a fractal. But you can still add the infusion if you plan on doing fractals later. Or something. It made sense in my head, anyway.
I am looking forward to getting some nifty Ascended gear, even if I don't plan on doing anything with infusion.