It was the first year for me too. There is an older couple in the congregation, wife is a pioneer, that would always mail me an invitation, but not this year.
I wonder if it has to do with last summer's convention instructions to shun inactive ones who are sinning, which can even mean something as mundane as speaking of the GB's hypocrisy or questioning a Watchtower teaching.
Or considering how the information was presented - that inactive ones who are sinning should be shunned - and considering how judgmental JWs tend to be, it might be automatically assumed by many JWs that if you have been inactive and away from meetings for a long time you must be sinning, therefore you are being treated as DF'd.