The main loss is for us, rail fans, who are the only ones interested in the charts, exploring them. I usually keep 5-10 minutes for charts alone. As we all know, charts provided us that valuable information on quotas (esp some of those hidden come to the fore), current patronage of the train, co-passengers, so on and so forth. Maybe we will have to talk to TTE/co-passengers more and more to glean such information.