Suggestion, Castle age unique technologies in University?

I'm sure I'm not the first person to suggest this but couldn't find any reddit posts about it. The idea is to add castle age unique technologies to the university so players aren't forced to invest into a castle just for the tech, which is often not possible in competitive play. It would probably need to come with some kind of balancing costs or something for some of the technologies, for example:

AtlAtl 400 food 350 gold -> 600 food 450 gold

Yeomen 750 wood 450 gold -> 750 wood 750 gold

Castle age techs who would be the biggest winners/overpowered:

Atlatl, Yeomen, Chivalry, Anarchy, Marauders

Castle age techs that may become viable for castle age strategies, which are seldom used right now:

Tusk swords, Obsidian arrows, Sipahi, Chatras, Chieftains, Howdah

Things like Slav's Orthodoxy and Teuton's ironclad could become viable as well but are still not game changing.

I never play scenarios so I don't know if this would mess with them, like some of the suggested tower balances. But this would allow for a lot more strategy diversity in late castle and transposition to end game.