Folkevermore I am a Crew Planner so I know exactly what you are talking about, it can be hard to try and get these things across to people with little understanding of the railway. To be honest half of my headaches come from people who should have a good understanding of the railway sticking their oar into issues they dont understand, that's bad enough!
Had an email chain land in my inbox the other day that had been all round the houses about 'solving a problem' that I identified a fix for in 30 seconds purely by knowing what the actual plan was rather than trying to invent one outside my sphere of expertise.
The trains can be rubbish and are at the moment (for a myriad of factors) but I think it is easy to say 'lol why don't they just do X' when the whole system is complicated by it's very nature do to the layers of modernisation that have come in. That doesn't fit the narrative though, especially for politicians. Apparently the 'dinosaur' railway needs to 'get with the times' and make it easier for staff to perform different roles/sign more routes and traction. Like they did under British Rail, then