User blog comment:Revanchest/Runic Compass/@comment-12314620-20140713110854

I didn't read the whole guide but there are 2 things I'd like to point out:

Using smite to start the camp isn't really that beneficial as you make it sound. Most times you get away with it, especially on lower elos, but when you don't the results can be devastating for your clear. If opposing team decides to late invade your clear time suffers heavily and you cannot contest for the buff anymore. Even if they have no jungler with them invading you still cannot effectively secure the buff for yourself. If your laners are bad/not paying attention they might accidentally steal your buff.

Furthermore many popular junglers can and especially at higher elos will contest for your red buff. Kinda sucks for you if you just used smite to clear wraiths/wolves

Now finally about you rant about Ezreal and Master Yi. Ezreal offers your team utility in form of Essence Flux which increases your teams attack speed. This is very useful when taking objectives (turrets, drake, baron). His mobility also reduces some responsibility from your support and other peeling champions since in most cases he is able to kite the opponents by himself (not saying Ezreal is good at the moment though).