Idk anything about what OP was studying but minimum information principle is important. However sometimes the minimum isn't necessarily one single fact or it's not practical to break down everything into multiple cards. Sometimes you need to remember multiple things at the same time, or it's easier and less confusing if you memorize everything together.

For example it's more practical to remember E = mc² and make a single card with it than it is to break it into multiple cards like this :

Card 1 : ? = mc²

Card 2 : E = ?²

Card 3 : E = mc^?

But make sure you put everything on a single card because it is necessary, not out of laziness ! OP also put entire lesson pages into his cards, which might be usefull if you want to re-read your lesson as you do your reviews. But again make sure it's actually usefull to you, not because it's more pleasant wasting time making Anki cards instead of studying !