I have a feeling that, for a lot of folks, this was the first time preordering a product under development from a new business. Consider it a learning experience. If it was unbearably frustrating, and made you miserable, you should probably take that into account in the event you want to make a similar purchase in the future. Preordering, especially from a business in it's infancy, is not for everyone. There are innumerable variables that can affect the process, and noone can perfectly predict the future.
Saddles are shipping now. If you PREORDERED, yours will arrive soon, if it hasn't already. If you order TODAY... it will arrive soon, because they're catching up very quickly. The time from the first Mantis deliveries to the delivery of a Mantis ordered today is only a month and a half, or less. Not much difference there, huh?
So... if the stress and disappointment was too much, consider purchasing after a product is actually shipping from inventory. You can skip the headache, and receive your order only a little later.
Just a thought.