It's not whataboutery, it's pointing out blatant hypocrisy. Trust me, I’m no fan of the Iranian regime, they are to be condemned.
However, the region is absolutely fecked, with atrocities committed on all sides whether it’s Assad flattening Aleppo with Russian and Iranian backing or western backed forces and NATO planes destroying Raqqa. Iran has a despicable regime, but their enemies are no better on any metric. Therefore, any outrage at the Iranian side is completely false because they haven’t done anything that any other country in the region either hasn’t done already or wouldn’t do in their position. This isn’t Serbia ethnically cleansing a population, or Sierra Leone in 2000.
In my opinion, I don't actually think that Israel, Saudi Arabia or the Gulf states want regime change in Iran because they're a really useful enemy to have. The mullahs ensure unconditional American support and aid. Iran has highly educated and literate population, coupled with vast amounts of oil that they cannot export. If they were to liberalise and come in from the cold, it would pose a massive economic threat to the current allies in the area. There’s a reason why Israel, Saudi Arabia and the Iranian hardliners all hated the nuclear deal (the IRGC are like the mafia who control all business in Iran - the deal threatened that).
Therefore, for all the bluster and bullshit out of the region, the aim of the game is to keep the pressure on Iran without ever forcing out the regime.
Donald Trump is unpredictable, however. He might feck it for everyone.