Why does HA create different entities and services

Hi there, in these days I’m using the SQL integration but I noticed that it doesn’t create one service with more entities into it, just it creates 1 service → 1 entity like this:

Indeed I’d like create one service “consumo_frigorifero_bimestrale” and below “consumo_frigorifero_ago_set” and “consumo_frigorifero_apr_mag”, in order to avoid confusion and too many voices, since I will add other devices.

As opposed to something like this :

Probably because it was built before they allowed the new construct earlier this year (March?) …and haven’t had a need to update it.

It seems the same issue