why say templates when you mean pages? (even if its technically not a page, its easier to understand in terms of “pages” than in terms of “templates” ie the standard term for it would be more a “page” than a template)
As you state, it’s not a page, it is in fact a template. EE isn’t just changing or making up terms, every CMS system I’ve worked with uses templates. Pages would be more confusing as it implies you have an individual page for everything in your site, you don’t.
weblog when you mean section etc
I’ll give you that, it can be confusing. Most of these lower cost CMS systems were designed for bloggers, or at least targeted at them, hence weblog. With EE though, you can change that term throughout the system to whatever term tickles your fancy.
Edit-Add: However, weblogs don’t necessarily directly relate to sections, they are just different content containers within the database. I have “sections” on several sites I’ve done that pull content from multiple weblogs to make up the viewable content for that page or section. TemplateGroups or individual templates probably relate more directly to traditional static site type structures (sections)