Well, that will be up to Trinidadhunni to decide.
His important “content” could very well be on the static HTML part of the page — such as a company description and permanent keywords in the meta section of the header or displayed on the page via HTML — while the blog area could be merely news updates or asides that aren’t necessary to index in search engines.
Some sites are designed for their existing readership — members of your club, your family, employees, who knows — any demographic of readers besides the random millions who Google.
It is up to the user whether Search Engine Optimization is a priority or not.