They have nothing better to do, some in the government don't have the aptitude for analytical decisions. Most are shit-for-brains.
It was probably a random, half-assed decision that probably went like "Haan, wo Steam website to ban kar do, zyada games hai usme, hamara kaam ho jayega"
The ****ed up part is, actual betting games are proudly being advertised everywhere with major celebrities at the forefront.
Time to switch over to Jio Games for some vaastu action-adventure gems! Want racing games?? Rev your bullock cart and drag race with Chhota Bheem!
There will always be a way to bypass the ban, but it shouldn't have to be that way in the first place.