People commonly use this expression in everyday conversation, such as, "you could save 10 times as much if you would just shop at Costco." So I agree with OP, their comment is correct but pedantic.

> People commonly

Your example them was a weasel worded advert that uses meaningless terminology to make something sound big (savings in this case).

People don't use that expression.

Communication is a superpower. You say something and the other person understands.

Being pedantic about words means you think effective communication is somehow wrong. Be precise, don’t be pedantic.