Perhaps it would be better not to tell other people that the way they use a technology is "subpar". Parent's wife is presumably a smart person who found a way

Perhaps it would be better not to tell other people that the way they use a technology is "subpar". Parent's wife is presumably a smart person who found a way to use technology in a way that benefits her, without knowing a lot more context, I think it's a bit silly to leap to the conclusion that she is "doing it wrong".