Sadly, that information is incorrect. Have you ever read through the entire Bible for yourself (instead of having the priest read it to you)? Check out the reading charts on that Lectionary thread, and compare the list to the index in your own Bible. "The Entire Bible" that's read in Mass is really only about one-fourth.
....the average nondenominational/Evangelical hears less of the Bible at service than a Catholic hears at Sunday Mass....The percentage of non-Catholic pastors who systematically read the entire Bible from their pulpits to their congregation is approximately zero....
Have you ever been in a worship service with expository preaching?
Also, according to norms laid out for all priests in the Roman Missal, all homilies are required to be expository lessons on the Scriptures.
You wrote:
“Have you ever been in a worship service with expository preaching?”
Far less scripture is covered in the average Protestant “worship service with expository preaching” than in the average daily Mass. Feel free to prove me wrong.