Sure, what I've said above though is that it's Deli that's poor in the afternoon, and both Deli and Dish in the morning.
I think the comparison to Eurostar is different though, because Eurostar has always been that way, and there is also a more premium option offered, whereas with LNER not only is it the premium service but there will always be comparisons with what was offered before.
Virgin Trains East Coast and pre-Azuma LNER used to offer a full breakfast or hot meal on every single weekday service. LNER have a huge number of Deli services where all that's on offer is a cold sandwich or vegetarian toastie, even Edinburghs, and on almost every breakfast train except for the handful of southbound "DINEs," it's a bacon roll for breakfast or some microwaved vegan doubtless palm oil fake sausage monstrosity.