The problem with the Hunting option is that it isn't guaranteed that we will catch the parasite, and it's hubris to think otherwise.
The parasite is small, fast, adaptative and resourceful. If we try to hunt it now, it can lead us on a merry chase as it forces us to wade through all the impurity still present at the depths, all the while pulling even more impurity from the breach and taking that time to recuperate.
It's true we chose the extended time option at the beginning, but it's not limitless. If we continue to choose the options that delay the breach's sealing then it will run out at some point.
If we fail to catch the parasite and the deadline is approaching, then we'll have to rush to the breach either way. Except the parasite'd have had all that time to concentrate its forces and prepare a defense cattered to the abilities we have already displayed.
That's the worst case scenario. I disagree with the notion that
The worst option I can see actually happening is extra forces get built up at the breachhead. And then we beat them because we've shown facing this thing's forces head on isn't a huge deal for us,
We would be in a zone with a dead crystal, so the Piper's influence would be at it's minimum. And with the breach right there, it will be as close to the parasite's hometurf as it can get.
If we go to the breach now it will force the parasite to rush to stop us, with no time to recover or prepare specific countermeasures against LQ
Also, for those who would like to capture the parasite. To successfully achieve that we would need the parasite to be at it's weakest.
And that implies cutting off its connection to the source of impurity.