In minecraft 1.9 there should be an /if command

I know that people are supposed to post bugs here but i couldn't find any other page to mention this idea.

So there should be a /if command which would replace /testfor

ex. (/if @a[m=2,score_kills_min=5,team=red] ~ ~ ~ /NEWCOMMAND)

or (/if @a[m=2,score_kills_min=5,team=red] ~ ~ ~ /execute @a ~ ~ ~ ..)

or (/if @a[m=2,score_kills_min=5,team=red] ~ ~ ~ detect ~ ~ ~..) or with the /execute command idk

This way we would use so much less command blocks and use ONLY 20 tick/s redstone clocks . I just thought that in minecraft 1.9 the new things would be; new commands the most, so here is an idea.