I went over this change in a video on my channel before Doja had posted the CG response (link: https://youtu.be/ey86euEFt50) that addresses these changes and why I feel like we are due a refund.
The heart of it is this:
1) We were told that he was "passing too much offence", with a statement to say that the original intention was only to pass QGJ's offence without the modifier from the omicron applied. This is not how the omicron is worded. These distinctions are important when players make the decision to apply the omicron.
2) The omicron was changed to state that only other Jedi allies gain 30x their speed to offence. QGJ has completely lost this additional offence from himself. It's a direct nerf, but I wouldn't call it a massively impactful one, as the damage is predominantly coming from JKA's nuke ability afterwards. It is still, however, a fundamental change to his leadership and different from when players applied rare and hard to acquire materials. Whilst I still feel like the omicron is definitely a strong and viable one, this still warrants a refund in case players are unhappy.
3) A second direct nerf to remove all viability if any GLs exist on the board. I'm less bothered by this personally, but this is not a bug, this is a direct nerf that was not stipulated in the description, nor reported as a "bug" by CG ahead of time. Further supports a refund of the ability.
I still think this omicron is worthwhile and would immediately reapply it myself, but CG really should reconsider their stance that these changes "do not fundamentally change the identity" of this particular ability. We aren't asking for gear refunds, just the ability materials used to apply the leadership.