The political situation in the Gulf region has changed enormously over the last few years and continues to change in a negative fashion on, almost, a day to day basis.
Personally, after recent events, I would not choose to visit any gulf, or indeed middle east country, in the foreseeable future.
Three years ago an Italian PhD student at Cambridge was tortured and murdered in Egypt. At the time this was explained as a completely aberration to blamed on the particular problems of Egypt. Since then the murder of Jamil Khassoggi and the imprisonment of Matt Hedges, not to mention the many other people of many nationalities, summarily arrested and imprisoned in these countries on trumped up charges, and who remain in prison. This includes British nationals
I have seen no evidence to suggest that Matthew Hedges was 'naive' in his behaviour and lacking in the skills to read difficult situations (I assume that is what perhaps not very bright means). He knows the region extremely well and he is doing his PhD in the School of Government and International Affairs at Durham University, a well established department in one of our world class universities. His trip would have been agreed, researched and security checked before he went. He would not just have decided to travelled there on a whim.