Let explain it simple.
For example I am a developer (I said for example) that have skills to implement XCI loader. But! It will needs me spend some time to do it. Time that I can spend to playing games.
So, if you want XCI loader - create it yourself or hire developer that do it for you....
You have a Patreon?
I want xci loading, and my reasons have nothing to do with piracy.
I want to be able to dump my game cards to my 4TB external hard drive (already done, actually) and play them off that (still waiting), rather than having to mess with inserting/ejecting 100+ physical cards every time I want to switch from one game to another, or having to decide which 8 or 9 games get to be installed and all the fuss involved in uninstalling these
games so my kid can play those
games, and then uninstalling those
games so I can play these
games four hours later. Also sd cards have a limited number of times you can write to them before they cease to function, so I'd much rather not increase the wear and tear like that.
Oh, I also like the fact that you can fold updates into the base game on an xci, something you can't do with nsp. There is a game that has 22 revisions and over 50 DLC. I don't own it because I'm not into that game series, but just as an example, that represents a difference of 1 file vs 52+ files (base, most recent revision, all DLC). For me specifically, I own LoZBotW, which I bought at GameStop the same day I bought my Switch. I own the DLC for it too. On my computer I have an xci file that is the orginal dump of my personal LoZBotW gamecard with the latest revision update and the DLC included, which is what I use to install the game on my Switch. One xci that does the equivalent of 4 nsp files. One instance of installation versus 4. Saves me a spot of hassle. Obviously not as extreme as the game with over 50 DLC, but still, do you see my point?
If you don't have a Patreon, get one or something like it. Tell the people in here and places like it that you'll do the work if they pay you and give them a link to do so. I'll be one of the first to contribute.