A number of technologies for Demeter seem to be highly over costed or under tuned, in particular economic technologies researched from the town center that will conflict with building villagers.
Divine labor: Takes 200 food 15 favor. Takes 40 seconds to research. This tech comes at the opportunity cost of building 2 villagers in addition to the high up front price tag for something much worse than pickax/hand ax in economic performance. The healing effect is nice though at least.
Gracious Hospitality 150 food 20 favor - Same issue takes 40 seconds from a tc building to research - 2 villagers
Divine Blood - 100 food 25 favor, 30 second research time. At least this one does not cost 2 whole vills of production. At least the moderate food cost and coming in the heroic age when you can have more vills on favor makes it feel more reasonable to buy.
Divine blood also cannot be researched by villager center.
Suggestion: Cap all technologies researched at the town center at 15-20 seconds so they do not prevent more than 1 villager from being produced, something counterintuitive to the economic benefit. Alternatively allow these techs to be researched from the Granary.