

Tbh, the Saudis do put in a lot of effort to provide at least some protection. And their infrastructure is mostly temporary. But if you have tens of thousands of people extra it’s not that easy to protect them as well - when you already shelter millions.
Don’t get me wrong, I am not a fan of the KSA government (really) - but I do work in disaster preparedness/planning and that also includes crowd management. And from that perspective the Hajj is pretty impressive. The conditions even outside the worst summer heat are extreme, the crowd has often only minimal education, there is a huge language barrier, people tend to be somewhat vacantly.
Read up on it, it’s quite interesting.