Baby seat-belt wasn't provided on takeoff - worth complaining? [closed]

On AirFrance flight form Paris to Montreal yesterday the AirFrance crew forgot to provide the baby seat belt before takeoff.

Moreover, no cabin check was performed in our segment before takeoff so we didn't get the chance to ask for one.

I was still working on my laptop when the plane began moving and the electronic call to the crew was answered only after take-off; The crew apologized and gave us the seat-belt immediately for the rest of the flight

This is a security failure that could have ended in a tragedy.

Anything I can/should do about it? What can I hope to achieve?

Thanks.

Edit: (How) Can I leverage this for a news debate about infant safety in airplanes?