Sexist ? - Native English please educate me . . .

Stumbled upon this . . . xxx . . . video re. Zuckerberg, Privacy, etc. . . .

Protected content

. . . Which attracted comments along the line . . .

Quotes:

I'm sorry, do you think referring to an assertive woman as "having her sassy pants on" is acceptable?

Does this "sassy" MIT professor have a name? Please, Upworthy, show some respect! Sherry Turco has an important message.

End of Quotes.

. . . And was wondering whether some native English could enrich my thesaurus and shed some light on the context as to why the wording used by upworthy . . .

This MIT Professor Has Her Sassy Pants On, And She's Not Letting Mark Zuckerberg Off The Hook

. . . is being considered 'abusive' ?

Oh, and yes, the 8+ minutes video . . . Protected content . . . on public use of private email, etc. is worth watching too in the light of PRISM which seems only top of the iceberg :-)