Yes Rasny Bhai diction and pronunciation is very important for singers at this level.
yes summer di..instead of telling "maza nehi aaya,,,I'll give u an A 4 u", they should explain the errors, from these only a kid can learn. but it should be done kindly. seems 2 be judges should watch taare zameen par( i don't mean these kids suffering from dyslexia😛)