That's my point!
Throwing around numbers like 86% only make people go "waitaminit - 92 is larger than 86 so I refuse the 86 vaccine, I must have the 92 one!"
A much more useful bit of consumer information is "all vaccines are 99%"!
Note: this is more of a worldwide perspective. In the U.S. you basically only use the two effective ones, so there this particular point is moot. (Instead you have fools refusing vaccines altogether, which is a different story)
But in lots of countries, it's just tragic to see people refusing a vaccine because of its effectiveness against infection when it is its effectiveness against severe disease that to me is entirely obviously the much more relevant number.