I doubt I'll be much affected by this limited pilot as there is no need for LNER to raise the price of an advance above the current super off-peak price in order to deter me from travelling - I am deterred at a lower price point than that. And I don't buy the flexible tickets that are being withdrawn. So they'll be creating room to further increase fares that are already so high that I would rather drive, fly or take the coach.
I am concerned about the remainder of the wedge of which this is the thin end, however. Pricing people off trains is just a strategy to mask the consequences of refusing to lay on adequate rail capacity. It's a dreadful transport policy by any measure; bad for the environment, bad for the economy, bad for consumer choice, bad for resilience.
A wider roll-out would, of course, see the cheapest advances getting more expensive as well. It won't only affect the most expensive advances (which will rise) and the flexible off-peak and super-off peak tickets (which will be withdrawn) that I don't buy anyway. It will move the Overton window. I doubt we'll see that with the pilot, but I've no doubt we'll see it later.