I thought they changed the laws so that Chorus can install the fibre without all the owners consent? You're lucky you can get fibre when we bought our house Vodafone said we could get cable and Chorus said we could get VDSL, turns out we could get neither. I work from home for a company based in Europe and ADSL is shark for video meetings.
I believe the law change is that owners must have some reasonable justification for refusing consent but don't think that has come into effect yet. Currently, consents from all owners are required and they can just say no without needing an acceptable reason. Lucky it's technically available to my address I guess, but seems like there's too many hurdles to actually get it. Don't think we can get VDSL or cable either so we're probably stuck with ADSL too.