Does this mean ending of altcoin pump?

LOL, one of the main ways of earning money that these altcoin exchanges use is to pump and dump altcoins themselves. it is a well known method! they even place fake buy walls to manipulate the price and a shady exchange like bittrex which is showing signs of money problems is a good candidate of market manipulation.
besides, you can never prove this type of manipulation. price is going up, that is all you see. you don't know that it is being pumped with fake news and a fake group with lots of sheep following it.