I'm always OK with delays because no aspect of life is flawless. That being said, it makes a word of difference with delays where the GA's/Pilots/FA's keep us informed, either if it's them explaining the reason or even saying "I don't have all the information right now/know what's going on but I'll get back to you as soon as I know" over complete silence. I'd argue that the majority of the passengers on any given plane would be OK with the delays if there was some form of communication. 9/10 of the flights I've been on with a slight delay the communication has been great but there are always those flights where there is nothing but silence and guessing.