partial truths are being put forth here. The rules for this are:
1. no consequence for faction base blocking with bagballs or 100,000 candlabras..do it to your heart's content.
2. ANYWHERE else in the game, items can be placed but a clear path must be present and they can not block doorways or entrances without the 1 tile path
This is usually the rule.
I have seen tons of times of bagballs placed inside dungeons with winding paths and yes I have seen GMs appear and do nothing as there was a tile of movement available.
There was also a tile of movement available at the idoc unfortunately the 1 tile rule was not something this GM agreed with or even knew about.
This is not the first instance I have seen questionable behavior from this GM particularly.
I have also seen him randomly appear at a different Fel idoc and warn players of account action if they kept blocking the houses sign outside. Not blocked from accessing it, blocked from seeing it.
That's the big problem here they had movement they could get in and out but 1 tile wasn't enough.
I agree with Berethrain completely on GMs, if you don't like their answer page a different one SERIOUSLY.
The rules change 100% from one GM to the next, there is no consistentcy they just are making this stuff up as they go.
The last time I heard someone get a bad response from a GM they told them they were dumb and would just page and get a different one later. When they did, they got a different answer too.