If you need extra features you use extra programs which are tailored to those features. Unix philosophy.
I’m supposed to use an extra program to download a torrent in sequential order?
Depends why you want it. If you want it to reduce fragmentarion, then just enable fallocate. If you want it to download files in sequence, then XML RPC. If you want file to be downloaded in very inefficient way, then be patient.
Or, I just right click and select sequential download so I can start watching a movie immediately. This logic of breaking everything down into the tiniest possible bits is how we ended up with ridiculousness like the lpad debacle.