I don't know what the law is elsewhere, but in NZ, emergency services are allowed break red lights, but they can't be travelling faster than 20kph (~12mph).

The only possible reason for an ambulance to be travelling that fast was if the patient was on the verge of death, and now you've delayed getting them to the hospital even more....

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At least he didn't have to wait for an ambulance!

Neither really applies here. The motorcyclist simply couldn't have heard / seen the ambulance in time. When you have a full face helmet on, your sound intake is muted. Not silent, but with the ears being covered and wind around you.. it's basically like being deaf to anything not in your immediate vicinity.

This is the EXACT reason that almost all emergency vehicles (at least locally) even with lights and siren blaring will slow right down at an intersection to make sure they aren't going to get clobbered.

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While I agree with you, you also have to check local legislation. Around here, if you collide with any emergency vehicle with its lights and sirens on, you are at fault.

And yeah, that ambulance driver was totally reckless.

Ambulance was totally at fault.
The lights and sirens give them the right of way at a lights but doesn't give them license to completely ignore them. There was no way the biker could have seen or heard the ambulance there.

also why ambulances don't normally blast through red lights.

Never understood why this didn't become standard issue on ambulances and other sorts of emergency vehicles, though...

HOLY CRAP!!!!
Some more info on what happened here.....

Hundreds of people have been injured by a massive explosion at an industrial port in Tianjin in north-east China, caused by a shipment of explosives that went up in flames.
The explosion happened just before midnight local time (5.00pm GMT), but has caused secondary explosions and fires in the surrounding area, Chinese state television reported on their online microblogging site. The Xinhua news agency said a deafening bang was heard as flames lit up the sky, sending dust dozens of metres into the air.
Three or four hundred people arrived at the Tianjin harbour hospital after at least two devastating blasts, the Beijing News reported, quoting an unnamed medic who works there. Some were brought in ambulances but many arrived on their own, after emergency numbers were overwhelmed with calls

I doubt that would work according to http://www.komonews.com/news/local/Trooper-gives-6-mph-escort-to-scooter-bound-woman-lost-on-busy-highway-306704751.html article in the YouTube's description link:

"... Since the woman was unable to walk, their only option was to call for an ambulance and they'd have to strap her to a backboard to get her home, then figure out a way to get her scooter to her, Francis said. So instead, the trooper mapped out the route to her home decided to give her a police escort, riding behind her at a very slow speed with his lights on to make sure no one would hit her..."

I don't understand this video...
Is it just 20min of bikes escorting ambulance?

While living in HK, I saw so many occurrences where people just would not get out of the way of ambulances and fire trucks. Cars and pedestrians. There may not be a requirement to move, but in some cases it was sheer inconsiderate selfishness (200+ people crossing a road on red walk signal, ambo waiting about 1.5 minutes)

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I had a look for other embeds, but couldn't find any... my search terms may have been off, but I did try autó félek a mentő and car scared by ambulance.