Rather than looking at the grounds where our stats are skewed by another team (eg West Coast) who has the highest home win rate of any team 69.83% it probably makes more sense to look at the teams individually. We have a 58.18% win rate at home historically - somewhat middle of the pack and behind Collingwood, Geelong, Adelaide, Carlton and Port. I think our so-called 'home advantage' is highlighted because we've been the 4th worst team winning away (30.36%) - so comparatively it stands out. If you look at West Coast though, they've got the 4th best away record as well (45.53%).
I just don't think the data shows a massive advantage at home, or teams travelling here are disadvantaged. I think it shows Fremantle have been far better at home than away.
I certainly don't think it makes us immune to being a candidate for a spoon - just like it didn't for WC in 2010.
I would also add that we were far better at home when that home ground (Subi) was unique to the league in terms of its dimensions. Optus will dilute that for both us and WC.