I've emailed them in the past and I received a helpful response, but it's obvious that the Module::Build versus ExtUtils::MakeMaker problem has still not been properly addressed (I even described a solution for them). Also, I have already emailed them about this particular issue (and copied that link).
That being said, they've had years to work this out and they still can't get it right? I completely understand how some problems can be hard and it's tough looking from the outside in, but we're talking about a problem that CPAN has managed to generally get right long ago (and where it gets it wrong, you can still at least install the modules and cross your fingers).
AS's Build and PPM systems are, in my opinion, fundamentally flawed and have been for a long time. I really do feel bad for saying stuff like this as I know Jan Dubois and his colleagues probably don't appreciate the grief and I can't possibly know the constraints they have to deal with, but it doesn't change the fact that now I have to rewrite code at work due because of this and it's certainly not the first time I've been put in this position.