Yorick's Flash-W is broken

Since patch 6.20, in which Yorick's W cast mechanic changed to always cast at max range, Yorick can no longer Flash-W. Doing so will result in the wall being cast at the max range Yorick used to be pre-flash. This is showcased in a recent video by Dyrus (seen at 4:30 and 6:43), and has also happened to me consistently in my Yorick games since patch 6.20.

Also, while not a bug, I and other Yorick players I have talked to, would actually prefer if the cast mechanic was reverted to act as it did on launch of the rework. It would be in line with many other "placement" type abilities currently in the game such as Orianna and Syndra Q, Lux E, Teemo R, etc. Ideally, once the new client has reached feature parity with that of the legacy client players would have the option to adjust this for themselves, if not on an individual champion basis, then at least as a global switch. Something similar to the switch that allows for changing between smartcast with indicators vs. regular smartcasting.