I don't understand why you're so upset about this. If you don't think the product is a good value for your time and money, that's fine: don't purchase it.
I think Helm comes with some obvious trade-offs, but the product looks nice and I think (judging from other HN comments) there's a market for it. I don't know if it's a large market for this to be a success, but it seems interesting at least, and at first blush the product looks well-made.
I don't think this product is exactly for me as my main email, but it could be interesting as a side email service, or one for really sensitive emails. Depending on the price point, I'd consider purchasing. If the price point is too high or the maintenance costs are too large, then I won't. What's the big deal? That trade-off not working for you or me doesn't mean the product shouldn't exist.