Oh come on not you too. No it's not anticlimatic and no it doesn't make Xebec's death pointless or stupid
Xebec's death is purposefully dramatic, unfair, unjust, forgotten, small to highlight the path of the character. It's a tragic death, it's meant to be read like this. It's not meant to be justified, or grandiose, or meaningfull (at least for his legacy) or bright. It means to be a dark mirror to the deaths of the D clans.
1. It's ONE of their power. Guyz, you need to understand that this is just ONE of the things Imu can do. And the fact that it can be countered is already a W.
2. We still don't know if Imu is the "supreme villain"
3. There is absolutely nothing underwhelming in that, It's a simple system of field control.
There is. It's just not meant to be extremelly complex. Everything doesn't have to be. It's meant to be a very well understood power with a very clear drawback but a very clear potential of destruction.
Like I said, it's a characterization tool. It's a strategic gamble. And the beauty relies in this parameter and this simplicity.
Guys, you need to go beyond the simple critic, really.