How does that address what I said?
The FAA rule is that properly installed seats are allowed. In this situation the flight attendant changed it from proper installation to improper installation. There is no way you can have an internal policy to make child seats improperly installed.
The FAA rule is about child seats not fitting, the child seat fit in the seat.
No. Read the pdf. The airline can dictate policy to determine what seats are allowed for the seats due to safety and many other factors. Not specifically because they can't fit.
Here's a quote for you.
"An operator may have policies based on safe operating practices
that
establish certain seat locations for a
passenger who use
s a CRS
on a specific aircraft. Even if a certain seat
in another location in the same
class of service can accommodate an approved CRS, an operator does not have to permit the CRS in that
location if the operator’s policies disallow the CRS in that seat. "
Man that pdf has weird formatting when copying