I think it would help Writer be accepted as a competitor to Word, Apple Pages etc, if it included a more 'standard' selection of fonts e.g. Times New Roman, Helvetica, Arial, Avenir etc. Many organisations have a house style for their documents and communications. To use one of the Google fonts offered changes that house style.
I think Writer would look more credible as a competitor if it offered at least a few of the well known 'standards' in its font menu.