I believe it's beneficial that he didn't drop out six months ago, as it forces the Trump campaign to re-strategize at the last moment of the race. There are fewer negative attacks on Harris, while Joe has been attacked for four years. It probably stresses out the Trump campaign a little.
That's very true. I like the play of "more than a bit of chaos on both sides rather then stubbornly try and defy the headlines and possibly fail. As we see with Trump's truth social post, whining about getting back the money spent campaigning against biden. They're just as unprepared for this than the democrats.