I'm sure they do need to reduce the amount of weekly ticket types, but if they promoted some of them a bit more, people would know they exist.
An example being the Whitby Town ticket. Surely you'd have some marketing material inside Whitby's Solos that are on the 95 every day, highlighting these tickets? Very easy to do, even if its just an A4 sheet that can soon be changed if prices change.
There's plenty of other examples too.

And what about the Explorer tickets - yes they're a multi operator ticket, but I've not seen any publicity about these on buses for years. It's almost as though they want to keep their existence hidden away.