Perhaps you should tone it down a notch, and take the advice given in the spirit it was intended (to be helpful, if snarky), rather than accusing people trying to help you of things that have nothing to do with them.
If you want help, accusations and complaints are not likely to get you what you need. Describing your problem, with as many specific details as you can give, including pictures where applicable, and all of the circumstances that led up to the problem, will help us help you fix it, or to prevent it with whatever you replace the system with if that turns out to be necessary.
If you just want to complain about the manufacturer, I can move your thread to the appropriate Vendor Relations forum. BTW, the manual you show isn't from Crystalyte. It's from that specific seller that rebrands Crystalyte motors for their own purposes; if the seller didn't pass on information about a product, that's on the seller, and you should talk to them directly about this if you want them to update their information. Complaining here is unlikely to do that; it's highly unlikely they ever visit this forum. If you already have talked to them, and they blew you off, I suggest simply avoiding them in the future.
Making a calm, clear post stating your complete story, leaving out nothing at your end or theirs, gives you some chance of influencing others from not buying from that seller in the future, if that is your goal. Posting the way you have been so far is only likely to influence others from listening to *you*, or attempting to help you in any way.
FWIW, I would guess from your reaction to the lack of waterproofing of the motor that you have little experience with ebike parts; there are virtually no waterproof hubmotors; certainly none of the common brands are, nor do any of the ones I've seen claim to be. (some sellers of various products claim all sorts of things, but that is the nature of many sellers, to leave out information that might deter a sale, or worst to lie or distort the truth just as much as they can get away with that will make people buy more of the things that they sell).
If you look on Youtube and/or the http://ebikes.ca site, you can find a video by Justin_LE for a VEVA presentation showing how hard it is to actually make a hubmotor waterproof, and how easy it is to get water into one even if you think you have waterproofed it.
If you want something (anything, regardless of what it is) that is waterproof, you need to look for something with the appropriate IP rating (IP67, for instance) to handle the water ingress level you expect under your usage conditions.
If it isn't rated as waterproof at the appropriate level, then you must expect it to NOT be waterproof. That is why those ratings were established, so that when something *is* made to be waterproof, you can know what to expect from it.
