No, this isn’t fixed in snapd. The denial is an ‘mmap’ denial:
audit: type=1400 audit(1513618216.704:914): apparmor="DENIED" operation="file_mmap" profile="snap.cumulonimbus.cumulonimbus" name="/dev/nvidiactl" pid=23037 comm="cumulonimbus" requested_mask="m" denied_mask="m" fsuid=1000 ouid=0
It seems the application has an executable stack. Please see Snap and executable stacks.