Why are you leaving the golems behind? Because of their speed? But the spells Flight and Dimension Door are quite common in the Tower mages' guild!

Yeah, and they take away a lot of movement points... And on Expert difficulty, Flight for air magic users basically costs the same amount of MP as regular movement. And how will it help if, because of the golems, you have "short legs"? You won't fly far.
And most importantly, even the faster golems are already sluggish in the rearguard during battle. They don't hit hard, and besides, they can't be resurrected.
Personally, I don't leave them behind because of theoretical conclusions, but because I see that they practically never get to move during a battle. I'd rather take strong neutral creatures in that slot; luckily, someone will definitely join a powerful army.
And in general: who will guard the Castle?! Or will you teleport back and forth throughout the game? And what if the main hero is in a location without "housing" at the moment the Castle is attacked? Then you'll have to trudge back through seas and oceans?

Added 8 minutes later

If you're fighting powerful liches (at least a group of several), they might not even pay attention to the gargoyles - they'll focus on killing the mages, gremlins, or djinn, taking advantage of their low numbers...

As practice shows, gremlins are always killed. That's their karma, you have to accept it. :smile51: Mages, by the way, don't have a penalty for melee combat; if they hit, it's as good as a ranged attack. And djinn in tier 3 don't get special attention from the AI.
As for liches specifically, faster gargoyles will reach them and pin them down before they even decide who to "pay attention to"...

There are many weak neutral units that are fast and like to attack those who are weaker (dragonflies, silver pegasi, etc.)...
Even a horde of grayed-out imps has considerable speed for the first level. At least 1 slot out of 5-6 of these neutral creatures can get 2 turns and rush to one of the djinn. It's not serious, of course, but it's annoying if the army is far from the city and there are no more djinn to replenish the army slot...

Well, they won't rush to the djinn. They'll rush to the gremlins or other ranged units. And in general, if there are 5 djinn, they're doomed, but if there are 55, I feel sorry for whoever rushes to them. By the way, upgraded djinn are faster than titans. And noticeably stronger than dragonflies.
And in general, if I'm talking about myself, I try to resurrect everyone. :smile50: