Yes, Iniss has told you what it's like outside of his host body. But has Tom ever told you what it's like inside it? I had a Yeerk in my head, Dani. This isn't something I tell most people, but I saw how easily it rifled through my memories, created the perfect illusion of me and nearly fooled all of my friends while I sat in there, screaming, helpless.
You're right that I shouldn't try to guilt you, but I do want you to know that there's no guarantee that you've ever talked to Tom. Yes, Iniss can say exactly what Tom would say, exactly how he'd say it - he probably doesn't even see a difference between that and letting Tom say it himself. But as long as Iniss is in there, he has no reason to ever give up control to Tom, even for a short while.
[Private]
You're right that I shouldn't try to guilt you, but I do want you to know that there's no guarantee that you've ever talked to Tom. Yes, Iniss can say exactly what Tom would say, exactly how he'd say it - he probably doesn't even see a difference between that and letting Tom say it himself. But as long as Iniss is in there, he has no reason to ever give up control to Tom, even for a short while.