I'll state your sentence positively. I'm sure this is NOT a gracious way to explain the options. But then, Jesus, our model, was not always gracious either when He spoke important truths. He called the Pharisees a "generation of snakes" and told them that they were of their father, the devil.I'm not sure this is a very gracious way to explain the options
I don't think taking the words of Jesus in a literal sense is necessarily "wooden" — indeed, I think the only way to "hear these words" of His "and do them" so as to be like the man who built his house on a rock, is to take them literally.
Now I know some of His words were not meant to be taken literally. For example, cutting off your hand if it causes you to stumble. But surely that is a quite different matter from letting your answer be a simple "Yes" or "No" rather than taking an oath. If He didn't mean you to take His words literally in that case, refusing to take an oath, then what DID He mean when He gave this injuction?