Azis vs Roll Cancel

to perform a RC attack (except mashing types like elec and kicks) is it necessary to have time to roll? I mean, if I want to do a RC Hadouken, I have time to also roll through?

My friend is saying that RC is useless because it’s only for defence and if you can RC a move, means you can roll through it and punish better. All he thinks is “roll and throw”, “air block, land and throw”

This is a post of vKuwabara, one friend of mine talking bout another Friend.

I wanbt to ask everyone in this forum, What u think about Azis, my friend who says RollCancel is Useless, can u guys please give ur opinion?