Well it is no surprise that this sister should seek advice from the elders considering the fact that ALL jws are told to obey without question and they have their beliefs 'adjusted' every time New Light comes through from tbe GB. I bet there are many jws who arent exactly sure what the up to date teachings are regarding the overlapping generation, the GB being the FSD or what blood fractions are acceptable let alone if Jah is going to strike them dead for making wedding invites for people he might not approve of.
I know a young jw who was thinking about starting a cake making business until I pointed out that not all her customers would be jws and she might be required to make a cake for a celebration that went against her Watchtower trained concience, and she would not be able to discriminate without getting into problems. Needless to say she dropped that idea like a hot cake !