Hey, all! It's Sunday night, so the cosmetics dev team is enjoying their weekend. I'm going to have them take a look at this tomorrow to investigate when we're at work.
If this is an issue (even though OP says you can actually shoot before the anim "completes"), please trust us that it was unintentional and we'll try to fix it. We never intend to make things pay-to-lose or pay-to-win.
If it's not actually an issue after we investigate (some of you below have pointed out the videos aren't side-by-side, so some of this might just be "feel"), thanks for still reporting it. We make these skins for all of you and we honestly do appreciate bug reports, general feedback, and "feel" type feedback we get. This is why custom anims are very tricky--it can be the same exact timing but sometimes "feel" slower, or even "feel" faster. We test extensively for this, but sometimes we will screw it up. Not saying we did here YET (still gotta look at this with the team)!
In general, we're making this game for you all and with you all, so thanks for giving us the benefit of the doubt. It's hard shipping a live game. It's even harder during a pandemic when we're all isolated from each other. So thanks for being on this journey with us so early on and helping us get it right.