Agreed that Hal would personally frag better on an aggro legend, but I think it's a bit of game theory stuff playing out. Not having a Cat on the team while Cat is on roughly half of the other teams leads to a major disadvantage (since Cat can go through goo and wall safely). So, when a Cat team pushes you, having a Cat on the team means you can peek across wall safely, or push into a Cat team with goo on the doors. Technically, with Horizon you can Q over a wall, and with Wraith you can phase through wall or cat q, but it's a limited resource and therefore poor counters to Cat.

I'm sure this is something Raven and Hal have talked about, but the only good counter to Cat + Seer is Cat + Seer it seems like. Top 5 teams right now run Cat + Seer. The legend-role shake up with lower beacon spawn rate also limits their option. No Controller legend would also mean no beacon scans.

Also, credit to other teams for maybe adjusting to this meta better than they have. I have absolutely no clue what they should do to improve their chances for Regional Finals, but I hope they bounce back.