Do you need to call lanes in blind pick

So I just got out of a fucking game where brand instalocked. I got in the fucking game and I asked why he didn’t go jungle. He immidiately responded that calling lanes was optional and as soon as you auto lock you get the lane. He was playing brand which is way more popular as a support anyways. I told him that he needed to call lane and the whole team whales in on me saying they are gonna report me for feeding and toxic which i was just asking why he didn’t cal, lane. I asked the enemy team what they thought and they said it was mandatory and my team began to feed themselves. Fuck this game he also said I bullied him out of his lane by calling mid after he autolocked
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