I reckon the 'disconnect' thing essentially means that the social media accounts and the digital content have lost the personal touch, which makes some supporters feel 'the club' is less approachable/accessible.
By personal touch, I mean the manic over-friendliness of Sarah Gooding's tenure on the Twitter account, or the nicely pitched mix of professional, good quality and personable stuff that @t3dkath brought to the party, or the good-natured endearingly ramshackle Chris Williams video content, like him and Martin Brodetsky doing their Statler and Waldorf "to the camera" bits in the preview videos not that long ago.
As we discussed in a different thread, losing that stuff does feel like it's a step away from having a community club feel, and I think losing that is what people mean by feeling a 'disconnect'.
Whatever it is, it's definitely a relatively recent phenomenon - I suspect people who aren't on Twitter/Facebook/Whatever are probably completely unaware of any of this or these kinds of conversations.