Kog'maw nerfs. Please explain =/

So Kog had a crazy redesign on his W during the ADC rebalances and changes. But was left feeling useless. Finally patches happen and work gets started

Flat dmg is added to his W and AD ratios are removed.

Kog is still too weak and can't get through the lane phase to even get to late game to be viable.

AS Passive from Q is shifted to W. Kog feels super awesome =D. Kinda overpowered so changes are made.

Instead of reverting the change you wanted to make a better world for Kog and build off the changes, so AS passive is removed entirely. Ws flat dmg on hit gets a buff and AS per lvl growth is increased.

Kog feels good =). I love it, not over powered, no where near use for LCS priority by any means but hes playable and can win games. Some how this is unacceptable?

New patch and nerfs Kog, nerfs the flat dmg on W back to pre-buffed status. So in all of these patches, Kog gained AS to lose AS, and gain steadily, buffed his early lane so he could survive, to revert the buffs? So now the only thing that has happened since the start of the ADC rebalances and redesigns is Kog has lost AD scaling on his W, and lost his attack speed. and Nerfed W back to where it was when it needed buffed.

Am I missing something here? How is Kog playable now?

Oh and a slight buff to AP kog mid.