Yes, why are they only implementing this now if the sanction took effect in August? Not only that, they're still giving Venezuelan customers a couple more weeks of service before they shut down all accounts.
The bigger question though, is why is Adobe shutting down all Venezuelan accounts, when the sanctions only apply to Venezuelan government entities? I'm sure some overly cautious lawyers and a cost-benefit analysis were involved, but it's still bullshit to cut off the entire country. A lot of people in Venezuela depend on Adobe software for their jobs.