Quick Question about Thrawn's Ebb and Flow zeta

Thrawn is a beast on Raids. He makes soloing Ranco with Zader easier thanks to the -50% Speed Penalty (I use Zader lead, Jyn, FOO, TFP and Thrawn).
In the HAAT, he is great in phase 3, in a Chirpathrawn team. I use Chirpa lead, Thrawn, EP, RG and Shore, easily do over 2 million, without super speedy mods.
And yes, I have a 7 star Thrawn. Don't hate, just trying to offer helpful opinion...