I thought this was anti tank meta
Until I saw this. http://leagueoflegends.wikia.com/wiki/Transcendence_(Rune)
The reason it's a bit problematic is because squishy champs like ADC's and Assassins are squishier, WHICH IS FINE, but tanks and jugs are being awarded with bonus ad or ap. So stronger tanks and even squishier ADC's and Assassins.