What is the point of providers "branding" their apps, or worse, not providing m3u or xtreme codes url, only password/username.
Its easier, for sure. Is that the reason?
Or does it "lock" new IPTV people into their service and their service only as that is what they are used to. If you give people the option of choosing their own app, they may learn about other services through learning / reading about iptv?
I think it is both. They are providing you 'their' app so no configuration. Easy for the newbie. Some may also feel like they want the newbies to also not learn what is available beyond THEIR service. But I have only been with one provider that requires you to use their app. That was long ago. Now every service I've tried offers m3u and/or url where I can use username and password.