Someone please sell me on the new Qorvex augment

So, bit of context here. I've been using Qorvex since his release, got my boy with 9 Formas total, I like to think that I know how to play the big boy.

So come techrot encore, I'm excited for the new arcane and augment, I see people raving about it, it looks great. I go to try it. And it just feels worse than default.

Sure, the on demand invulnerability is pretty good on paper, but I never felt like my Qorvex was struggling to survive, even on EDA. But the trade-off of needing to completely change the building to make up for the energy lost just doesn't feel worth it.

Like, I'm not saying it's a bad build, not at all, walking with Ophanim eyes stripping armor while you nuke everything is great, but my wrecking wall build does something similar while also applying damage vulnerability, at just the cost of some lost of mobility on his 4 (You still can aim glide with his 4 if you aren't using his augment btw)

Really, what I need to know is, is his 4 augment a better augment, or is it just a fun build. Not saying that there's something wrong with that, I just want to get where the hype is coming from better.

(edited because formatting stuff on mobile is an awful experience)