To clarify, Harry at one point was given a list of wards an inner-circle Death Eater would be expected to have prepared, which include anti-time-turning. We don’t see Voldemort or anyone else cast such wards, so it’s down to whether we think Voldemort has permanent versions around his sanctum.
Good points here.
About the Time Turner, I thought there were wards against it. The stunning hex was a bet, but jumping on the Time Turner could have gone even wronger.
To clarify, Harry at one point was given a list of wards an inner-circle Death Eater would be expected to have prepared, which include anti-time-turning. We don’t see Voldemort or anyone else cast such wards, so it’s down to whether we think Voldemort has permanent versions around his sanctum.