It's so nice that you care about Jeremy Jacobs' money so much. I don't know if you're American, but if you are, do you also check off the box on your taxes to voluntarily donate more money to the government?
Senyshyn's existence on the team isn't hurting anyone else's development. His qualifying offer is around $875k, which wouldn't be on the cap if he's in the AHL, and if he's in the NHL, then that cap hit would be close to 1% of the total cap (aka nothing). There's no reason at all to not offer him the qualifying offer.
I honestly don't understand how you could logically think they're not going to qualify him. I don't think you actually believe that, or else you'd take up
@BruinsFanSince94's bet to eat a hat. If you're so certain, there's no risk to you.