If you notice how slow everyone's going, it's not much of a shock. They're not really hurtling through that interchange recklessly. The difference is in places like the UK people go fast and then stop at designated areas (traffic lights etc..) and leave big gaps and all that, in India and places similar everyone goes much slower and leave small gaps and don't stop at designated places. You can cut infront of a bus but that bus is travelling very slowly anyway and they're all paying attention to what's going on in front.
Whereas in the UK or something we let traffic lights and the rules do all the work and that makes us go much faster, but if someone gets it wrong there's a bigger chance of a harder impact/big accident because it's so much more unexpected, whereas over there it's completely expected.
It's not like they're crossing the interchange with the mindset of "fuck fuck, quick quick before that bastard slams into us" as one who is used to roads over here would think. Nor for example would the bus coming down the road seeing the bike pull out in front think "fucking hell this nutter is pulling out in front of me I'm going to smash right into him" - it's a completely different mindset to the roads you would get over here.
It's not better, it's still a much worse system though.