Totally true, but the attach rate on AC is already practically double what SM is - there are about twice as many PS4s in the wild without SM that are potential sales, obviously, since the box has had so much longer to sell.
This isn't about what sold better in what time frame, 6 weeks is more than enough time to see the bulk of AC sales and SM can keep going too, and AC will absolutely outsell SM at the end of the day. The point is simply that the figures are very similar and it may be a helpful indication, in conjunction with TLOU1 sales, on roughly how well it's going to do. I think you'll be surprised at just how many that thing sells. We're still in somewhat of a lockdown and we've had no big releases for a long time now.