i think some are misinterpreting how chakra taking dimension swapping is suppose to be. opening those portals , moving the area by will and just completly moving everyone to another dimension. remember how hard it was just for obito and sakura just to make a small opening, which they couldn't keep open? yea she does that effortlessly. she still has a limit on the chakra she can output within a given timeframe, just like everyone else.
as for hogoromo. he no longer has a body that can make new chakra, he is just what remains of himself. he literally just gave a power-up to two people, it makes sense to me.