You skipped an important part of the quote from RFC-7519[0] (later replaced by two RFCs[1],[2] without the strange suggestion):
> The suggested pronunciation of JWT is the same as the English word "jot".
Replaced by RFC-7797[1] and RFC-8725[2], neither of which have the pronunciation suggestion. There was also an errata about the pronunciation line[3], which probably explains the mismatch.
I don't, so perhaps I'm just doomed not to understand, but I still don't get that? I would never pronounce it 'jaught' either (nor know what someone meant if they did).
> the same as the English word "jot".
Only makes sense if your dialect has the cot-caught merger[0]
[0] https://en.wikipedia.org/wiki/Cot%E2%80%93caught_merger