Travel along an Indian highway and try to find your standard roadside motel as you would in US ala Best Western. There are no low-mid tier chains.
What OYO is promising is scale. What Best Western took 50 years to do these guys want to do in 5 or 2 idk.
It's a worthwhile bet given the Indian consumers purchasing power/quality expectations are on the rise. It's not at all a big stretch to imagine such chains existing in India 10 years from now. Someone is going to build it. You can always ask the established chains in the west and they will tell you how long they think it will take.
Now if you asked a AT&T, Comcast or Vodafone whether they could role out a 4G network with 300 million users in 3 years across India, I don't think any of them would think it possible. But Reliance Jio did it anyway.
The textbook on how fast you can scale things is being rewritten. In that context what OYO does pull off is going to be interesting to watch.