Merriam Webster[1] online disagrees with you and agrees with OP. That said, etymology is often contentious. https://www.merriam-webster.com/dictionary/boilerpl

Merriam Webster[1] online disagrees with you and agrees with OP. That said, etymology is often contentious. https://www.merriam-webster.com/dictionary/boilerplate https://www.merriam-webster.com/dictionary/boilerplate