Pixie learned with dry crackers (you could use nuts, cereal.. whatever- I think dry is the key for some reason, maybe makes you make more saliva?) Chew up the food until you are having that instinct to swallow and then put the pill in the chewed up bite in your mouth and take a drink to wash it all down. We started with tiny things like Pearl probiotics and worked our way up. She swallows handfuls now and I have to tell her to slow down and do them one by one so she doesn't injure herself.
I used to not have ANY issues w/pills and even swallowed things without liquid in highschool when needed (I had severe migraines) but now don't even want to swallow food and often choke on even small bites, and crave smooth foods like smoothies, applesauce, etc. I also have a chronic sore throat (uhhh we've tested positive for strep for over a year now, so no surprise, I guess.) I actually think the throat/swallowing stuff got worse for me after my tonsils were taken out about 7 yrs ago (and I'm 33.)
I think you should do whatever works. If pouring the powder in your mouth is working, dont' stress about taking the pills- just focus your energies on getting well. Why add more anxiety? That seems silly.