Absolutely correct!!!
SEO copywriting plays a very important role in the way SEO functions. A new copy can ATTRACT, ENGAGE, CHANNELIZE & RETAIN potential customers while a bad copy can lose a customer along with presenting your company/products in bad taste. Copywriting for
SEO today is an art on its own, you need to make the content interesting and UNIQUE, neither duplicates nor cut-copy-pasted material will hold any importance and if anything can decrease the PR. So copywriting is a talent and if you must write than its vital to hone one's writing skills and make it SE optimal.