Just in the interests of balance, I still find it odd that an entirely new series of flights are launched and there is no public comment/announcement about what the operator plans to use on the routes - it's a completely different position to 'normal procedures' described above.
Because it's only important to the spotters!
Do you think it matters to Mrs Jones in South Woodham Ferrers whether it's an ATR72, a BAe146, an Embraer 175 or an Embraer 195, do you think Mrs Jones knows what any of these are and/or if she cares what any of these are, all she's interested in is going on her holiday and who's going to look after her cat whilst she's away!