Jain Jinendra, Sir!
Thanks for allowing others to know the rule.
This requirement of rules and faqs is quite old and in due course it is to be implemented.
However, what rule you have given is in general not implemented by the TTEs as they do not get any thing in lieu of their labour.
I...
more... give you an instance recently took place.
One of my office staff had booked a W/L ticket from counter of himself and a companion.
Since, it did not get confirmed but remained in RAC, the companion did not travel.
My staff demanded No-Journey certificate from the TTE who asked him to wait. At 01:00 in the night, he cam back and asked whether he wanted full seat or certificate? if full seat, he will not issue certificate or if certificate is required, he will give him only half of the berth and on the remaining half, will set somebody else (we all know the rule that if an RAC passenger does not report, the remaining passenger gets confirmed on the same seat and other rule is that, in running train, no RAC is allotted).
And ultimately, the required certificate was not issued and hence, no refund.