One thing to consider here?
Do you plan to keep the car more than 8 years?
If not, then don't overthink it. As you are still in battery warranty period, unless you are in 100K+ miles.(not sure on exact mileage)
Add in when you see 10 year old Leafs or Soul's still with good battery % after 10 years with no thermal management.
Worrying about battery is something low down on the list.