For the animations the only reports about motion sickness we have gotten was the running animation, which is going to be addressed in the next Update. There has not been any notable reports about such issues with animations in general, as such the effect on population is deemed very low aside of the mentioned animation.
Multiple animations still need polish, as that was only the first pass, but at least issue wise there is nothing out of the ordinary to be seen. Please feel free to describe your issues on a GitHub issue, priorization and what we look on also always depends on what feedback we get from players and typically using that feedback gives a good approximated overview for what issues are there.
Complaints for animations were rather that they slow down some things compared to what people were used to, but that was a fully intended effect and food animations have been adjusted to address complaints during playtest. No doubt that still isn't good enough for some, but it's within what we intended.
As for boats: They're the one single most requested thing by players you will find in basically any post we make anywhere. It also was the same on the voting page. We're literally reminded of boats at least 5 times per day by different people. Nothing else in Eco has more requests and feedback than boats, not even performance or bugs - and that is by large margin.