I wouldn't say it's "boring" (hence the downvotes, I imagine) - but this does seem like an interesting idea, to let the players choose their positions. Does such a style exist?
As far as I know no tournament ever used this rule.
A key part seems to be alternating turns placing pieces. I wonder if this would result in top level gameplay converging on certain opening placements? If so, I wonder how not taking turns but deciding on placement privately beforehand might affect gameplay.
Anyway, maybe when the pros get sick of Chess960 they'll give this a shot :)