The US Flag Code wasn't adopted until 1923.
USFlag.org: A website dedicated to the Flag of the United States of America - United States Code
In PDF format, it is 17 pages long.
The Constitution is 14 pages including the first 10 amendments. 14 pages to create an entire federal government and yet it takes 17 pages to write a flag code? What is wrong with this picture?
Agreed! And people may consider it disrespectful, but it is freedom of speech.