Makes sense.
Also, do you truly believe that Saudi-Iran can't make peace?
I can understand them having small conflicts but do you really think they'll sacrifice all the material wealth they've amassed over decades over sectarian conflicts instead of making peace?
They can't. Iran's invested too much into the dream of ruling over the ME and it's not unrealistic.
It has a really defendable terrain, lots of oil, the best port placements, okayish demographics and some REAL strategic depth on it's surrounding countries (Iranian sponsored militias who fought ISIS back in 2017 are now bigwig members of Iraqi Parliament).
Iran's main strength is their intel agencies.
The way they've created and sponsored Hezbollah, PMUs and Assad friendly militias should be a case study on hybrid warfare and even under sanctions, they've managed to sustain a MIC, surprisingly few domestic terrorist incidents and frequently project power across the continent without getting complacent regarding their own weaknesses, keep trying to develop nukes and have full political support on what must've seemed like a national suicide by launching missiles at US bases before it was done.
They have the capability AND the intent.
I'm not saying they'll necessarily realize their dream but there's no doubt in my mind that they'll try.
Saudis are Saudis. They'll get slaughtered if an ally doesn't step in.
I'm sure some allies will step in but the resulting war would wreck their fragile economy.
Iran, on the other hand, has little to lose in terms of economy after being under US sanctions and FATF blacklist for.. I don't even remember how long.