Does not matter when those legislatures had already delegated their (that) authority by their own lawmaking to other officials of state government. If you give away a US 'C'onstitued authority by state law, you no longer have it.Did you read anything posted?
There were competing slates of electors, both claiming to be the product of the legislature, the body the constitution recognizes to determine the slates of electors.
Certification is a bureaucratic process, not a constitutional process.
Pence to decide which slate to accept is a decision and an action. He should have sent it on to allow the next constitutional step to occur. He chose the bureaucratic type status quo the democrats and chamber o republicans would support.