Texas was technically not a Slave State, only allowing Indentured Servants. The official position of the US Govt was the Southern States didn't legally secede(Then why did they have to be re-admitted after the War?) So...the creation of W.V. was at best on shakey legal ground, if not out right illegal. The Constitution says the Fed. Govt. can't create a State from an existing State with out the permission of the State losing the area. Where the Govt. of Virginia wasn't going to give permission, the Fed. Govt. created a "Va. State Govt. in exile" out of thin air to give "Permission" to the Fed. Govt. that created it to create the State of W. Va. Seems like out right fraud.
No more fraudulent than treason....no more morally bankrupt than slavery.