most of users dont even have setup to run proper 4K, even many of my family members and friends, happy with 480/720p max.
whereas i consume other 4 TB per month, lol.
3 different relatives of mine use 30 mbps from jio and they are happy with that, here's me not even happy with 1 Gbps (Sometimes) xD.
So yeah, even if JIO remove 150 mbps, no will complaint.
By the way i was reading in other forum that current removal of 200 mbps plan is for only new user or who want to change their plan to 200mbps, cant do it.
Existing users, won't affect and will continue to use 200 mbps plan as long as they are keeping that. And i think it is all because of slow speed plans offers on Air Fiber and users are heavily opting that.