Actually, I think that the comic HAS been telling a story, and although admittedly extremely distant, there is a point to be reached.
At least, that's what I got out of that recent interview Jeph did where he spoke about Marten's ambitions or lack thereof. The comic is about many things, but most of all it's about people who are as real as Jeph can make them. (that is to say, at times almost completely real, and at other times you have Pintsize and friends wandering around

) All of the characters have obstacles to overcome, but overcoming them takes time. Yes, it takes a lot of time, but eventually I imagine we WILL see Marten develop a sense of purpose in life, Dora WILL manage to get past the envy she feels for her brother which leads to her insecurity, Hannelore WILL be able to interact with people normally, and Marigold WILL develop some self esteem. Just to name a few examples.
The thing I think Jeph really nails down though, and the reason why he can't make the narrative as engaging as you'd perhaps like it to be, is that life doesn't just throw the answers at people who have problems. People are given opportunities to do things which help them with their problems, and usually it doesn't go all the way to solving them. It does however help the person (or character in this case) overcome their problem gradually, and eventually after enough help has been given, the problem is solved or its impact is negligible. That's proper character development.
(A good example is Faye and Dora's reactions to therapy. From the little that we've seen, Dora seems to be a lot more initially dismissive of it than Faye does, so naturally it is helping Faye a lot more than it probably will Dora.)
Yes, I imagine that it would be very initially satisfying if, say, Sven and Dora sat down and Sven expressed his regret for not being a very good role model for her and generally being chauvinistic and lazy while refusing to acknowledge his huge amounts of luck, and Dora managed to use this talk to move out of what she considers her brother's shadow and develop more healthy relationships as a result, but a few months, or even weeks after, you would look back on that momentous occasion and say "Hang on... that came out of nowhere!" It's completely unrealistic and unsatisfying in the long run, so that's why Jeph doesn't do it.
And if I may say, it's quite rude to request that Jeph stop the comic because you're bored of reading it. You come off as antagonistic because that request is, by nature, antagonistic.

Besides, I don't imagine that stopping the webcomic now would be a very economically smart move for Jeph, given that, you know, it's both his and his wife's source of income.
