The security issues SUSE raised were actually fixed, but the Snap developers did not respond quickly enough with the info that the issues were fixed.

> I'd like to point out that the reason for the closure was not a failure at addressing any of the raised issues, but a failure to reply to either of the requests for a status update in July and September.

https://twitter.com/sysrich/status/1206593475833151488

That's interesting, since it looks like the issues raised by the SUSE Security audit are not all fixed yet: https://github.com/snapcore/snapd/projects/4