I hate it when something like this happens. I'll just say that you have to look DEEP. It could be something dynamically included in the page Header/Footer, site Header/Footer (not actually sure if that's allowed; never tried it), there might also be a subclass over a main class, and so the dynamic part of it is hidden from the subclass. It can also be references from other collections/items, etc. If there is even one reference, you can't delete it.
Considering it's a template, it could be anything. Not only that, but once you have removed all elements/classes from elements that involve dynamic information, you need to purge all classes that are UNUSED that involve the dynamic information (unless you disconnected dynamic info from each of those classes).
I'm fairly certain that if you contact Webflow they can help you out if you just absolutely cannot figure it out. And I don't know if there are any potential consequences of doing this considering it might break something. Who knows...
Yeah I checked out the dynamic page (Team Members Template) and there is dynamic information in all meta tags.