Too much friction and limiting the potential - thats why i reiterate. The SailFishOS is a delight technically and aesthetically - the business side though needs a major overhaul.
Just thinking out loud , they could partner with someone likee huawei to preload for EU/rest of world customers that cannot use HarmonyOS outside CH. Or even one of the other smaller OEM with access to the deep tech ecosystem to give a prebuild/preloaded f;agship at a cost competitive price. Or do a Apple and auction search/maps defaults to keep BOM costs down and aim for widespread adoption.