I apologise for this being long but I have done this for the sake of clarity and for clear reasons!
I am finding this works opposite to your goal. The more concise the post, the clearer the point usually is. Not to say I know much better, I have only started realizing this recently
But I dont understand your recommendation here. "Better AT" is too vague, and the only specific thing I see is the cheaper tech cost if you lose the building. To me you cant do that because you need the cost as part of the threat in order to balance the use of those buildings aggressively
The Rak could use buffs and nerfs and i think everybody agrees on that. Nerf/remove the camo, buff its AT performance/survivability more directly. Rather then relying on the cloak as a gimmick to make up for its shortcomings