Saudi Snub

[Lods]

No Saudi is a mostly Sunni country. Iran is the major Shia power in the region, hence Iran and Saudi are traditionally rivals.
Not only that but Saudi has traditionally been the home of the hard core Wahhabism or Salafism which is the ideology of ISIS

Yep
Just checked that and that's correct.

I was under the impression that the last thing the ruling family in Saudi Arabia would want would be a strong ISIS presence in their country though that may not extend to the general population.