I think the problem with TOM is that if there are a number of flights departing at the same time everyone turns up for check in at the same time. Why? Because many charter pax still think that if they aren't there 2 hours before they won't be able to fly whilst many also see the airport as part of the holiday experience. Of course nearly all TOM pax will have a bag to check in given the length they are away.
Compare that to an airline with a mixture of holiday and business routes where fewer people check bags and the influx of pax tend to be spread over the time up to departure.
As for the Dreamliner, TOM IMO have oversold the aircraft. Technically I'm sure it will be a game changer. Ultimately for the average pax though it is just another aircraft. Having flown 4 times on the A380 I feel the same about that aircraft. Sure it looks impressive and somewhat unique from the outside but once you've sat on it for a few hours it is just a modern 747.