...Red hold lights on this runway were out of service, shouldn't have mattered though.
I fly for a living and see this frequently - it really really annoys me. It shouldn't have mattered but nonetheless, had they been working it's quite likely that the accident wouldn't have happened.
Having only seen media reports (so take with a pinch of salt), however there seem to be some other questions to be asked about how the evacuation was conducted. One is that the engines seem to be running during the initial evacuation, which for obvious reasons is a big no no. The other report is that the cabin crew had the passengers gather at the bottom of the slide to check for injuries(?). Again - once you've evacuated an aircraft your first priority is to get as far away from it as possible.