Preachers should never have to preach on attendance. It should be obvious that when a Christian does not care to attend all the services, his interest is elsewhere. It is foolish to assert that we have a passage which pronounces anathema on those who don't come on Sunday and Wednesday nights. We don't need one. All we need show is that interest and attendance are connected and that a person who is truly interested will attend.
Now you can try to explain that away all you want and when you are finished it will still say the same thing: a person who is able yet does not attend the services is not interested in what is going on at the services. Bring your excuses, pronounce your justifications, and rationalize all you want. And when you are done, the parable of the sower will still affirm the same thing: prepared soil is the only kind which results in good fruit.