In a context where the geopolitical and commercial forces would all strongly prefer that such things never come to light, I'm on the side of more sunlight, not less.
Shining a light on this too early (assuming this wasn't an intentional "leak") could be akin to applying antibiotics to an infection prior to actually knowing what exactly the infection consists of, and discontinuing the treatment too soon (we all know how short the attention span of our news cycles are).
It doesn't seem unreasonable to analogize fighting spy networks to fighting an evasive infection: If you attack the infection with a half-baked or inconsistent treatment, you risk just breeding stronger infections that are even better at evading you.
Maybe I trust the US intelligence agencies too much, but it seems likely that they know what they're doing here. And so far, I've seen no evidence contrary to my default assumption that they're operating in best faith for the interests of the US and its citizens in this case.