It wasn’t so much about the tempo of web standards; it was rather that W3C cared about the consensus of a far wider variety of entities, and browsers got fed up

It wasn’t so much about the tempo of web standards; it was rather that W3C cared about the consensus of a far wider variety of entities, and browsers got fed up with being told what they should and shouldn’t do by people that were nothing to do with browsers—people that had interests in HTML, sure, but who were trying to pull it in directions that none of the browsers were interested in. And so, W3C having failed as a venue for browser HTML standardisation, they took it over. To parody the situation: a consortium of bridge engineers is discussing building standards, but somehow they’ve been lumped together with every girl named Bridget and every young boy making toy bridges with blocks, and they all have voting rights, and the girls are insisting that bridges must sparkle, and the boys think every bridge should be able to support helicopters and diggers.