Get your facts straight. You can blame me all you want, but this is a complete misunderstanding of how Lightning works.
If the LSP knows the destination node, it knows the destination. period. And you don't understand how Phoenix works - they don't do source routing. They use they LSP as a trampoline nodes. They construct the path and they know the destination.
Moreover, even in cases of source routing - if the user is connected to a single LSP - the LSP effectively controls the path because the graph information is fed by the LSP...
