Yes, I think it's best for Kyle, in the end, that it went to a jury decision and he was vindicated. With the defamation lawsuits that are sure to come in the near future, it's a better look for Kyle to have been found not guilty by a jury of his peers than to have had a mistrial with prejudice due to prosecutorial misconduct. It's much better than a mistrial without prejudice that the prosecution was clearly hoping for.
There is, however, a much more disturbing aspect to this case that wasn't addressed that would have been with a directed verdict or a mistrial with prejudice and that is that, when it comes to the criminal justice system, the ethics are entirely in the process and not in the outcomes. If an innocent person is found guilty because of failures in the process, that's wrong. If a guilty person is found to be not guilty do to failures in the process, that's wrong. If a guilty person is found guilty but it's a result of prosecutorial misconduct, it's still wrong no matter how much you're convinced that the outcome was right. The ethics are embedded in the process.
The reality is, whether you think that Rittenhouse is guilty or not guilty or something in-between, the process of this trial was a travesty. We just found out that the prosecution very likely knew the identity of "jump-kick man" the whole time and withheld that information from the defense. We know for sure that the prosecution tampered with the drone footage that they gave to the defense which ultimately became the prosecution's entire case. We could have had a directed verdict after Gaige Grosskreutz admitted to pointing his gun at Rittenhouse. We should have had a mistrial with prejudice once Binger bright Rittenhouse's Fifth Amendment rights into question. There should have been a mistrial with prejudice in the several instances in which Binger entered evidence that was ruled out by the judge in front of the jury.
We need to protect the process of due process, presumption of innocence, and prosecutorial transparency is we're to have anything resembling a functioning criminal justice system. This trial was an complete failure of processes which still resulted in the correct outcome.