In B^3's recent thread on the merits of Java my main point was that it made the connection of DSLs relatively easy.
I think in general a lot of the negative reactions to the LOP direction are folks thinking there will be an explosion of DSLs..
I remember it being a fad last decade, one that never really delivered on it's perceived promise. It seems like it's the same concept come round on the roundabout again. Perhaps a lot of people are just suspicious because they feel they've seen it all before, like mobiles post-WAP: been there, got excited, been burned, cut losses and got out again?