I can see how the hall of fame balloting can be quirky. Other than the 1979 World Series or 1987 Twins, I wouldn't know that much about Bert Blyleven and may have been inclined not to vote for him. I was lucky and got to see him win in Cleveland for five years as he was 48-37 during that time.
He also had some of the poorest run-support of all time imho with a weak-hitting Indians lineup behind him. I know they love him in San Francisco, but Duane Kuiper hit one career homerun for the Tribe

... and he was one of our top homerun hitters
Perhaps hall of fame voting is as much about a person's fame as it is about their respective talent.
Blyleven is easily a hall of fame talent imho but that is only because I was able to see him play. Many people cannot.
Maybe they reduce future hall of fame voting down to an algorithm and thus, take the people-factor out of it. Maybe they can come up with a number for how many times a person has appeared on Sports Center's top 10 highlights. Surpass that number... and the algorithm summarily sends you on to the hall of fame... sorry for rambling but felt like typing for some odd reason...
Think about Sandy Koufax and Gayle Sayers for example. You cannot simply go by their numbers.