The SVG to Lottie conversion is pretty basic and the animations as well. They are very small but as seen in the examples integrating Lottie in Hype you need to load the Lottie runtime on top.
There is a slim Lottie runtime version, but it fails on certain features (much like the full and thin runtime of Hype). It hence has to be considered adding the runtimes KB's as part of the animation. Although if you have multiple Lottie animations on one page the runtime would only be needed once (much like Hype, apart from Hypes potential runtime versioning conflicts across Hype widgets).