E.g: is it an internal tool? Is it a landing page? Is it a SPA that has to do a bunch of things before content can get rendered? These considerations have an effect on what is an acceptable webpage weight for most teams.
Traditionally those sites may have also consider
I am sure they will continue to be happier as the byte size shrinks, but in the interim they are able to deliver what appears to be a great user experience, in-light of your concerns.
Acceptable for what use in production?
E.g: is it an internal tool? Is it a landing page? Is it a SPA that has to do a bunch of things before content can get rendered? These considerations have an effect on what is an acceptable webpage weight for most teams.