How about, instead of complaining about London service, where there is nothing we can do about it, we should talk about domestic issues and constructively put the puzzle together. We have markets like Jacksonville that peak around 250 passengers each way and there is only a transit on a one time daily CRJ-700, or how about Sacramento where almost 200 people transit and there is not even a nonstop?
Put it this way, Jacksonville could easily be served on an A319, minimum, or at leased twice daily CRJ planes. No other carrier will do it, maybe Spirit, but even that is a long run, if Allegiant ever flew to Detroit, another long shot, than maybe they would connect a new transit, but this route has MONOPOLY stamped all over it. This is the same as West Palm Beach, Sarasota, and Savannah, there is nobody to compete with and they have no worries that anyone would be foolish enough to compete with them.
Sacramento, it will just not happen on Delta, they have given up, and Southwest will not do it, mainly because Detroit is a relatively small Southwest market, so again, creates another long shot. Again, unless Spirit flew there, they might connect this transit, but again, unlikely.
Unless Spirit all of a sudden adds Daytona, Sacramento, Orange County, Tuscon, Albuquerque, El Paso and San Jose, Delta could add them to compete, but they have not lifted a finger towards the Spirit announcement of Oakland, so I would not be surprised if they did not compete.
There are several scenarios you should think of before complaining on here about, "oh, we only have 1 flight to Timbuktu, why do we only have one?". Think of why the service is not possible, or if you post it, present a strong case instead of making it an emotional attachment.