Exactly. The most important stories deserve to lead the bulletin, regardless of whether it’s a major news day or not.
In the not overly distant past, Seven News Sydney has had bulletin-leading stories which are probably more to be expected from Today Tonight like a washing powder company being fined for overcharging its products and “How drivers can get cash back from motorway tolls” before more important news items. Reports on things like train station developments are fine if they’re shown between Sport & Weather, but surely not in the first segment (or even the lead story) of the bulletin?