I bet it was more work to put in that Barton than to do the CDV delete.
Honestly, I'm just going on my own absolute experience, never driven any other Hellcat or Challenger for that matter. However, it was immediately apparent to me when I got my 2017 Hellcat that from stop to stop driving, the clutch engagement point was completely inconsistent. I expect the clutch to grab at a point to give it throttle and I'd nearly stall (into oncoming traffic). Then next stop, it would engage at the point I thought it would. It wasn't just getting used to this clutch versus others, it was completely inconsistent and somewhat worrisome in city type driving. I just put 5 hours of driving on mine this Sunday, and 3+ hours of that was in traffic in my parts, and it would've been miserable if I still had this problem.
I'm not saying everyone experiences the same problem, but enough people have complained about it and felt a greater improvement after doing this. And also, it could also be if this is your only current manual that you just got used to somewhat feathering the clutch to get used to it. Since 16, I've pretty much always had two manual cars at the same time, so I could never get used to hellcat in the OEM form. My Viper is completely different, much lower engagement point, feels like a wet noodle, and all pedals completely shifted to the left. But even with that, the the Hellcat with the CDV installed very very apparent of its inconsistency and abnormality to me.
Long story short, if you don't have a problem, or don't feel the inconsistency that I'm describing, then don't worry. I only preach this because to me was so profound.