My comment: "it's incorrect to assume that the standard controller and smart controller will perform the same as each other based solely on their use of 2.4" was a direct reply to you saying: "
effectively, the V1 SC only has a
single 2.4 GHZ band available to the public,
which is no better than the range of the stock EVO 2 controller."
Taken at face value, your comment reads like you're saying the V1 SC can't have an improved signal purely based on the fact it works on 2.4 like the standard controller. Of course there is an expectation, based on build and Autel's marketing, that the SC will outperform the standard controller. If you've found otherwise, I would encourage you to consider uploading your flight logs so that we can all see for ourselves what you experienced.
If you read back to my earliest posts here, you'll see that I'm very critical of the
Evo II's signal performance relative to the expectations Autel and their dealers set and relative to Ocusync 2. I've similarly been looking at the SC, as well as the V2 updates in hopes they'll address the poor signal performance/reliability I've experienced. You had the SC in hand and with that, a rare opportunity to document and share your findings. You have real world experience that can help a lot of us make more informed decisions.