LNER Azuma London to Leeds - additional stop , uncomfortable seats and a cold train!

Distance: 185 miles and 70 chains (185.875 miles)
Cost: £28.90
I booked my ticket less than 48 hours before departure.
Value for money = 28.9/185.875= around 15.5p per mile.
Date: 29-June-2024
In this video, I travelled from London Kings Cross to Leeds.
Departure: 17:33 (1D24)
Units: This service was formed of 180109 and 801108 (I was in 801109).
*With subtitles*
Note that as a result of being formed of 2 5-carirage units , there was no quieter coach onboard. I think only the 9 carriage Azumas and the Mark 4 have these .
This was a very well-loaded service between London Kings Cross and Doncaster . A few other trains had been cancelled so I suspect that it why .
After departure from Doncaster, the train was very sparsely populated.
I tried to use eat at your seat but it didn't work. Staff served me very quickly in the cafe bar instead.
When I used the accessible toilet, I noticed that there was toilet paper all over the floor.
My ticket wasn't checked other than at the barriers.
I noticed that there was plenty of space for luggage .
Staff were prepared to do anything within reason so that passengers had a more enjoyable journey .
There was a special stop order at Peterborough as a result of other trains being cancelled.
The train was a bit late from Newark onwards due to trespassers.
The air conditioning was very strong.

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What was wrong with the seats exactly, poor quality?