Well the purpose of the article wasn't to point out the pro and cons of going to e3, it was actually to review/point out the change in direction the post andrew house Sony is going into. For example he points out Sony axing the playstation experience which could signfiy they're trying to save money
We don't know if they axe it or not since that normally get announce late .
Also saying Sony trying to save money by skipping E3 is stupid .
They going to be spending hundreds of millions of dollars on marketing leading up to PS5 .
Money spend on E3 would be drop in the bucket Sony just don't agree with the ESA or think there are better ways to get ROI on that money .
You can bet that E3 money for marketing will be used some where else.