Since LPEs produce a single path as output, it only can have a single gradient (i.e. it is not possible in SVG 1.1 for a single path to use several gradient paint servers, each transformed (moved and rotated) per sub-path or "fused" region of the generated LPE output path).
Proposing to close as 'Invalid' or 'Won't Fix'): AFAIU the requested feature cannot be done with path effects.
Since LPEs produce a single path as output, it only can have a single gradient (i.e. it is not possible in SVG 1.1 for a single path to use several gradient paint servers, each transformed (moved and rotated) per sub-path or "fused" region of the generated LPE output path).
Proposing to close as 'Invalid' or 'Won't Fix'): AFAIU the requested feature cannot be done with path effects.