That's because Wall had a better support cast than Kyrie did (before LeBron's return), when he went to the playoffs.
Kyrie's rookie season (age 19) he was running with the corpse of Jamison (2nd option - age 35), the corpse of Parker (age 36), Casspi, Gee and Varejao (who only played 25 games).
Kyrie's second season (age 20 - only played 59 games) he was running with Waiters' bum ass (2nd option - age 21), TT (age 21), Zeller and Gee.
Kyrie's third season (age 21) he was running with Waiters' bum ass again (2nd option), Deng (only played 40 games), TT, Hawes (who only played 27 games)
Meanwhile, Wall had teammates like Ariza, Gortat, Nene and Beal when the Wizards went to the playoffs, and this was when he was 23 and 24. Wall wasn't leading teams anywhere when he was 19, 20 and 21 - the same ages as Kyrie before LeBron returned.
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