You are not wrong. The newer formulas are worse than the older ones too. I suspect the dextrose to be the culprit.
I bought the cheap knock off cleaning kit off of amazon. long skinny brush for the hose and a large one for scrubbing out the bladder. I put the frame in and actually put the whole bladder upside down with a clean wash cloth in the the omega opening to absorb any additional dripping. That is my weekly routine.
Once a month I drop 2 Aquafresh toothbrush head/retainer cleaning tablets in the bladder, fill it up and let it sit overnight. It gets the bladder very clean, but you need to rinse it out really well least your next ride your nuun has a bit of minty freshness to it.