In the last part of Par. 126.96.36.199 of Reading 28 they clearly state that one drawback of mortality table is that it is based on an average, then there is a risk of outliving own assets.
In Reading 30 par. 31. they report the same drawback for calculations bsed on life expectancy but not for mortality tables.
It is quite confusing because mortality tables are presented as an alternative to life expectancy while, based on Reading 28 and also for common sense, they both share longevity risk.
Am I wrong?