Manages to survive the Dragon Wars while most of his kin and servants were wiped out

Manages to survive over 2700 years against Nordic kings, tongues, mages, Jarls, armies, heroes, warriors, adventurers and possibly even Dragonborns just looking to kill any remaining flying creature they see

Manages to survive over 700 years of brutal Akaviri genocides against Dragons in Tamriel

Manages to survive whoever else in between the Interregnum and Fourth Era.

Decides to raid Whiterun and gets killed by a bunch of measly guards along with an ignorant Dunmer and clueless (and most likely rookie) guy/gal who just so happens to be lucky enough to posses the ability to absorb Mirm's soul forever removing him from existence.

Talk about Anti-climatic....

It is a travesty. I'm sure Mirmulnir regretted every single friggin second of that decision in the span of like 3 mill-seconds from his last gasp.

Blasphemy is what it is!

I suppose that's why why he shouts, "Dovahkiin! No!!" with his last dying breath.

A shame it's bugged and the voice file for it is not used.

I'm pretty sure he cries out "NO!" or something along those lines of disbelief.

Guess he should have attacked a different city.