Because Usain Bolt or Donovan Bailey did 100m under 10 seconds, and 200m dashes, relay races and all that stuff, and did them very well; but were not the champions in the long distance races.
Because it is very rare to find an athlete who is a champion in both sprints and marathons. All is track, but the requirements for both are quite different.
Because today we jump from post to post, picture to picture, and blog to vlog; on feeds and walls and pages
Because anything less than 2 short paragraphs, is a "long post", and any video more than 3 minutes is "too long"
Because with social media, the average believer today has much more information in different modes (text, audio, video) today than 30 years ago; but they knew the Bible more.
Because being on social media is like doing several short sprints; but, like the Christian race, reading the Bible is a marathon.