The Liet Kynes gender swap was obviously for PC reasons but the other things you point out have plausible other justifications. For the lack of "jihad", conside

The Liet Kynes gender swap was obviously for PC reasons but the other things you point out have plausible other justifications. For the lack of "jihad", consider that the connotations of the word are very different for 2021 audiences that lived through the War on Terror, as compared to 1965 readers who might only have been vaguely familiar with the word. Also, Jessica (and the other Bene Gesserit) are clearly strong physical fighters in the books.