Granted im definitely no expert, but..
The Croscarmellose sodium is used as half-filler and half-disintegrant - helps it dissolve faster. Not a big worry, but makes my 'as-natural-as-i-can-be' way of thinking, a little iffy.
Magnesium stearate makes me nervous because its not water-soluble. It's used to keep the pill ingredients from sticking to the machines. Wouldnt want it to leave a lasting impression on any of my equipment or a film over the top of my wine - just because of my previously mentioned way of thinking.
Polyethylene glycol... Used in quite a few things.. Laxatives being one of those things, albeit at higher concentrations im sure, but still..
Titanium Dioxide.. Well... It's a metal, lol.
I would assume its safe to think that none of these ingredients are ever gonna blow out of the airlock, and your wine will only contain what you put in it..
What i would do instead, is to try to slowly lower the temperature of your must, and see if you can get some acid crystals to drop out. I've read that once they drop, they wont reintegrate themselves back into the wine, but i havent experienced it myself..