I'm trying to ascertain if the Marriott Bonvoy Gold status benefit as part of being a 50K or higher Aeroplan is a one off, or annual perk?

I'm a SE and claimed this offer last year. I've just noticed I've dropped to Silver Bonvoy. I understand that Bonvoy has a soft landing for Elite tiers. But also understood that being given Gold status was one of the perks of the Aeroplan Elite tiers.

Is that not the case? I've searched but cannot find terms theat explicitly state one way or the other.