I presume they'd be happy to realise that it is one of the older trains as it's more likely to get them to their destination
In all seriousness, this is a crazy take. If you think customers who use a network that is segregated from all other networks so doesn't have any other train types (apart from the odd freight and RHTT) working on it will be confused as to what sort of train they are getting on because it's had a lick of paint, you're doing a serious disservice to scousers. Just feels like you've plucked any insane reasoning out of the air to allow you to have a pop at something that lots of people will get enjoyment from.