They did already? There was a court case when the legislatures gave themselves the power to throw out elections. It went to the Supreme Court, and the Supreme Court ruling lets them throw out elections.

Prior attempts by states to do this in 2020 and 2000 failed in court, or led to the winning candidate (Gore) conceding, respectively. The 2020 standards that caused the election results to be upheld no longer apply in the states that changed their laws to take advantage of the new supreme court ruling.

What am I missing?