That would be reasonable if the only differences between the 23 and 24 was a few tenths of a second over a 1/4. But it isn't just that, not even close.
There is a dozen other changes with the car and while drag racing is fun, the vastly superior highland updates (which themselves is substantial between the looks - inside and out, the quality increases etc), with the seats, vastly superior low down punch, much better ride, handling from the suspension.
It's now the car it always should have been. A true all round sports sedan. The extra speed from the pano is just a bonus and taken in that context, it's a no brainer upgrade for anyone who can afford it. The 22/23 cars are only going to be worth less and less anyway.