I think its a no-brainer to assume that dota is pretty unknown globally.

That being said, don't dismiss it just because its a mod (That's how CS started)

For Malaysians, its basically the hive mentality at work. Dota is the "in" thing now and until something else comes to dethrone it, expect it to hang around since no one really tries anything new unless its got "Blizzard" attached to it.

Possible ways dota could be usurped from its throne:
1) They stop updating it. Just look at the number of 5.84c players now
2) Some other new game that is teambased, mouse driven and allows for solo PWNAGE!!! moments comes along.