It doesn't noticeably change the taste of beverages to me. As to the chemical argument, that doesn't matter to me. I'm willing to trust that people have done the homework and that it's safe to drink.
It's evident that some of those trusting people are willing to make or save a buck while putting you at risk.
At the end of it, people should probably make their own assessment as to whether they should put themselves at risk. And I don't mind drying a handful of dishes if the alternative is to lace them all with surfactant.
These products all have surfactants as the main ingredient, and surface tension is what literally define us.