Sure. Why do you expect that to work? The import/export is obviously only for emergencies. You should never try to integrate it in workflows with other office platforms. That's true for every single office platform. There is no way around that.
Ok, then it's not for you. Simple. LO is an Office clone, something iWorkdoesn't even attempt to be. I don't want iWork to be an Office clone. LO sucks because of that. (And import/export is far from painful.)
S/he switched, so it was not for her/him. S/he spent some money on things you kinda expect to work, s/he may have the go to say why s/he switched and paid the price for not knowing beforehand, literally.
Isn't that obvious?