Not sure why you're quoting the false advertisement text; it doesn't pertain to the argument of what is considered to be AI.
At least rules-based expert systems have always been a part of artificial intelligence. They shouldn't be called machine learning, though.
if/then logic is really just an implementation detail of rules-based expert systems. I think these rules-based systems can be differentiated from normal code in that there is a lot of compact domain knowledge encoded for classifications or decisions.