If for no other reason...
..Joe Biden's decision was good in that it has perturbed Trump and troops.
https://www.theguardian.com/us-news/article/2024/jul/21/trump-truth-social-biden-drops-out
Crooked Joe Biden was not fit to run for president, and is certainly not fit to serve and never was! Trump, the Republican nominee, said in a post to Truth Social, repeating his favored insult for the man who beat him in the 2020 election, and rehashing a familiar litany of unsubstantiated grievances.
JD Vance, Trumps newly installed running mate, called Biden the worst president of my lifetime in a tweet, and attempted to link Vice-President Kamala Harris to his scam policies.
Mike Johnson, the House speaker and a Trump loyalist, issued a statement calling on Biden to also resign the presidency, as well as suspending his candidacy for re-election.
If Joe Biden is not fit to run for president, he is not fit to serve as president. He must resign the office immediately. November 5 cannot arrive soon enough, Johnson said.
Biden is out but they're are still attacking him...I interpret that as their not yet having got a good strategy to deal with Kamala.