>>280497922
>>280497955
They also address the fact that whoever draws Caliburn gets their aging halted, with Excalibur (or Avalon) having a similar effect contributing to that (and one of the reasons her identity can be deduced) as well as that Gawain was her body double.
Not sure if they bring Merlin's illusionism.
Thing is, there is enough room for deniability and also for people to not care or never say anything against her. They were also in a land of magic having to fight monsters and witches.