Because Hestia is nothing but a freaking idiot when it comes to Bell. Especially his relationship with Ais. Most of the time she is going ga ga over Bell. When she is not doing that she is arguing with Lili. Or ruining Bell and Ais moments. Like in Volume 5 and Volume 8. She would have ruined Bell and Ais' dance in Volume 6 if it wasn't for Hermes and Asfi. It's freaking tired and annoying. I mean all she is good for is updating stats and going to the God meetings.
When she is not around Bell. With the other gods. Like banishing Apollo, talking to Loki about Dionysus and drop kicking Hermes. Actually looking after her children. Like telling her children she would take the blame during the Xenos arc. She is great. But scenes like these are very rare. Really drag her character down for me.
So who else wants Hestia to back the f***k off from Bell Cranel and Ais Wallenstein?