#2: Less utilization of mid-card talent
The wild card rule means the main-eventers of RAW visit SmackDown, while the top guys from SmackDown Live show up on RAW every week. This result in the mid-card talent of both shows not getting proper storylines. Superstars like Cesaro didn't even get an opportunity to show up on a three-hour show!
No one will complain if AJ Styles, Roman Reigns, and Seth Rollins appear on both shows. However, it will go stale pretty quick and WWE will not be able to create new superstars.
Former Cruiserweight Champion, Buddy Murphy, appeared on SmackDown Live last week. However, his appearance was not televised and took place during the ad-break, which is slightly disappointing for the fans sitting at home.
The wild card rule will prevent the mid-card talent from getting proper screen-time every week.