In that case, it'll take a really long time to actually groom something worth using.
Also, regardless if 80 Saths are peanuts, if they're making a race get more powerful, they'll eventually have to test them with stuff that isn't...
This whole thing about 'oh lets make these random weak guys stronger by throwing our stuff them so they can eventually kill what we're fighting' makes absolutely no sense, unless you make it really clear that you're just training them. (In which case, they would have attempted communication).
Even then, it may be a lot less effort to simply make yourself stronger than to make something weaker surpass you...