I forgot to cancel my subscription, so it looks like I'm the guy who paid for all these shorts. You're welcome.
Maybe that's what CBS intends this to be - a "thank you" to the people who couldn't be arsed to cancel.
Because doing this in hopes that people will sign up in October, rather than January (or February if DIS is pushed back, which seems likely IMHO if the last Short Trek is in early January) is ludicrous - even with the understanding that each of these probably only cost a fraction of a normal DIS episode to make.
They really should release them on Youtube or something though right before the season premier to try and entice people to sign back up for Season 2.