yes fantagraphics was a vector program.
another benefit of vector graphics is file size. vector graphic animations can be tiny compared to rastor files a 1meg animation in rastor might only be a few seconds but 10 minutes in vector.
a vector graphic animation could be quite good on amiga with decent specs but probably only in lower video modes 320x200 w 32 colors or maybe 640x200 w 16 colors. more colors adds bit planes and slows everything down.
a descent amiga can show short ham animations like juggler quite easily but it probably wouldnt be able to do more than a frame or two a second rendering a vector animation in ham unless it was extreemly simple.