Oh, Harris would definitely be hurt more, and there is definitely a political and media double standard when it comes to Trump and has been from the beginning.
Also, regarding the discussions of why Harris has surged since entering the race, I think it's mainly for two reasons: one is that her choice of Walz seems to have been a home run, especially compared to Trump's pick of Vance. And second, it seems as if there have always been a large number of people (and not all of them are Democrats) who are simply tired of Trump and want him to go away, but who were also concerned about Biden's age and ability to serve another term and therefore holding back. And so when Kamala entered the race these people have finally been coming out to support her and they're likely just happy to have a plausible alternative to another four years of Dear Leader. I say that because you can almost sense at Trump's rallies that even his supporters are sometimes tired of his stale rhetoric and rambling - he's like an entertainer whose routine has become tired and old. That doesn't mean he can't still win of course, but it definitely seems like he's lost a step and growing numbers of voters just want him to go away - they're looking for something new and fresh, and right now "fresh" is Harris and Walz.