Of course, I suspect that they probably realised that, much like sticking Shoreditch High Street in Zone 1!
What’s the extra £1.30 for … seems a bit strange.
It’s a bit like the using the HS Stratford International to go to King’s Cross ( £6.30/£4.40 )and then paying £2.50 to go to one stop to Euston Square, but the whole tube trip is just £3.20/£2.60 .