I would (this is where I fear I may be ignorant of the truth) assume that there is perhaps a rather strong correlation between money/education and English-fluency?
With that premise, it would seem that those with the power to effect change (educated engineers and entrepreneurs) are less incentivised to do anything about it - since they're presumably able and content to use "the English-language internet".
I suppose money can be the motivator though, if there's ~0.9*1.2B people clamouring for more internet in their native tongue.
I am trying to learn Hindi, so having read this I think it'd be interesting to toy around with pan-alphabet internationalisation when I've got a bit of a grip on it.