[Avodah] Throwing a Drop

[Akiva Blum]

The gemorah Yoma 58b says that the cohen who sprinkles the blood of par cohen moshiach and of par ho'edo stands on the eastern side of the mizbeach hazohov, which is situated slighly west of centre of the heichal. This means the cohen stood at about 20 amos away from the peroches.
The gemorah 57a states according to R' Elozor ben R' Yossi, the blood of par heelem dovor shel tzibbur should touch the peroches as he whitnessed it in Rome. This means that he would successfully throw drops of blood 20 amos!

Why is this not listed as one of the avodos koshos shebamikdash?