I don't believe Mossad was involved in the Bandar Abbas bombing.
Mossad bombings are precise and target single apartments/rooms. This one is more messy and did widespread damage. There are also no gas pipes which could explain what happened as any kind of accident.
This is likely an IRGC building used to host regime thugs. All furniture and even the curtains are identical. There's barbed wire and security outside. This was no residential building. Only the enemy lives here.
Further, we have "Long Live the Shah" written outside around the time of the bombing.
I strongly believe an Iranian monarchist militia is taking revenge for the massacres. Not only that - they have gotten access to explosives and morr advances weaponry.
Combine this with mass doxxing of basijis and IRGC terrorists, and you're looking at a real insurgency.
Javid Shah.
Onward and upward,
airforce