This actually is an improvement for Biden who had been losing several of these.
If Trump takes either PA or MI, it's game over. He only needs one of them to win.
After that, Trump needs any 2 of the remaining 4 states to win and Biden needs 3/4.
If Biden takes Wisconsin and Minnesota, and Trump takes Arizona, that means it will all come down to New Mexico and we have ZERO useful polling out of New Mexico, absolutely none.