We had like 5 day 1s last month. This is just the first 2 weeks. Herdling is day 1 on Aug 21st. This isn't counting the Hellblade 2 free update.
Also this is a slow month. September also looks slow. Then October has Ninja Gaiden 4, Outer Worlds 2, and Call of Duty. November has Keeper. PS doesn't even have 4 first party titles this year, and we're getting 3 in just 2 months plus a second party title all day 1 on the sub.
If you drop a ton of day 1s that no one could possibly be done playing like 2 weeks ago, sometimes it's best to have a down period for 2 weeks to recoup some money. No one is caught up yet.