I think BTC is holding these levels, because the current price
is only marginally above the average cost of mining a single
Bitcoin.
I don´t think Vitalik´s statements have anything to do with
the ETH decline. It is just a combination of a lack of interest
in ICOs (only 3 ICOs raised more than 25M $ in the 3rd quarter
of 2018 so far) and previous ICOs that are looking to liquidate their
ETH, which is providing continuous downward pressure on the
ETH price.
Better to get rid of ETH at 190 $ than at 40 $ (a price level,
which is not too far away).