Post-Hillsborough

“For many of us, this goes against our whole ethos of being a volunteer-run community club,” the supporter added. “Many of us have gone on record as expressing our serious concern at the choice of sponsor, especially in light of the fact that post-Hillsborough, we regard them as a toxic brand that no football club, especially not a non-league football club which is justifiably proud of its independence, should do business with. (The Guardian.)

Do you agree with me that "post-Hillsborough" is an adverbial of time in the paragraph above?