Unhelpful Public Announcements

I've been working up in London now for about four months and almost every day the train is slightly late. What normally happens is we get to Woking and then just sit there for five or ten minutes before setting off again. Inevitably the guard or driver will make an announcement apologising for the delay which is because we are "waiting at a red signal."

Now, is it just me or is that announcement totally useless? It tells you precisely nothing about why we are stopped or how long we're likely to be stopped for. They may as well have just say "We apologise for the delay, it's because we've not set off yet, we expect to remain here until we leave. Thank you."