Email body stored as quoted email when it doesn't appear to be

We are receiving a email notification from ThreatLocker that comes through as HTML (message ID=17441904417000y)

When the message is created in Autotask, it appears to be quoted:

when looking at the original HTML in Outlook, as well as the the plain text (with the option set to view all as plain text) there is no quoting.

The object definitely shows the plaintext having the >'s
The html_to_plaintext also has the >'s in it

The body_stripped looks to have grabbed a visible section (unquoted) and then the quoted section with the >'s.

Just wondering where they are coming from.