YANBU
Behavioural standards are up for debate, society has changed, the treatment of DCs with SN have changed and the amount teachers can shout, put down and intimidate pupils has changed.
But academically YADNBU
DH and I both went to laid back rural schools, which had never heard of lesson planning. We did well because we were cleaver, but there was an awful lot of just do this page out the textbook. It wasn't inspiring and I spent most of Y5 being very naughty because I was bored to tears. Y6 we were put in ability groups and thrown the harder text book, to teach ourselves.
There were no TAs, less able children spent ages with their hands in the air or staring into space learning nothing.
At secondary I went a comprehensive that had a total mixed bag of teachers, some good and some utterly usless. It ran 5/6 sets. If you were in set 1 or some set 2's you got a reasonable education, but if you were in the CSE groups you got the worse teachers and no one cared if you made progress or not.
No way would my DSIS, who is far from dim, leave school today with, the equivalent of, a handful of Dsand Es.
DH is slightly older (and his home county slower to modernise). He went to a brilliant boys grammar. He did get an education as good as any today, but 80% of the local DCs in the dire secondary modern down the road didn't.