I don't feel like we've actually "met" Alexander, just his Goblin protectors and their creations. I think if Mide went to the central core of the giant, she'd face tempering, but the outer areas? Don't think the Primal is awake enough to really influence things much (I mean, he moves a bit then shuts down. Twice.)
Summoning =/= tempering. IIRC, none of the Sahagan are tempered, for example (just the Drowned) and I don't think any Kobolds are either, nor the Gnath (don't know about the Vundu, but based on the Vanu Vanu quests they aren't either).
Ifrit is the only Primal (we know of) who indiscriminately tempers, being only focused on gaining more power and followers; Garuda tempers her children (Ixal) and only was going to temper you as a punishment. The rest likely save tempering as something else; Ravana probably sees it as dishonorable so will not Temper, Shiva may not know how (but also knows you have the Echo), Ramuh does not want to (only Tempered the Sylphs because they demanded he do so), Bismark...I don't know, maybe he has to eat you to Temper?
Tempering is probably not the first reaction to an enemy for most either; if the enemy is weak, why waste the energy to Temper them into a weak servant? Look at Nael; after his defeat Bahamut releases him from his Tempering since he proved to be too weak a servant (same for Lou, actually...)
