Does she flex on goten as hard?
No she didn't. When Goku died against Cell Gohan said she changed. It was like she realized what Goku's carefree attitude brought to the family and raised Goten to be like kid Goku. That would probably explain why his personality is so much more child-like at the age of 7 compared to how Gohan was at 7. Also explains why his hair was like Goku's at that age whereas Gohan had the long hair/bowl cut