Thats a valid concern and one I expressed when we were planning the change. The intent with the homepage was to feature both forum and blog content, so we were going for a balance there without marginalizing either - other than the featured article box, the homepage is nearly entirely forum content. Maybe it isn't a perfect balance, but a very good balance is what we were going for.
What I would really like to see would be for the blog to start covering forum things as well going forward, so that way the featured box for the blog also promotes the importance of the forum. Along with the design changes, we have also integrated forum comments into the blog articles now. Each time an article is published it creates a forum thread for discussion... In this way, the blog and forums will hopefully grow to become more complimentary than separate.
You can view a blog discussion thread here:
http://www.mac-forums.com/forums/ipad-hardware-accessories/265488-review-cosmonaut-pen-ipad.html
You will also find those comments listed as part of the article at the bottom here:
Review: Cosmonaut pen for iPad | Mac-Forums Blog
The blog is a great avenue to highlight forum talent, knowledge, and skill, so I'm hopeful it catches on with more people. Not everyone is into digging through forums and getting involved the way many of us are, but quite a few people are interested in learning from the skill-sets and experience we've gained if we share some things through the blog. There is a portion of the audience out there that finds a blog format less intimidating than a forum hierarchy - it should extend the reach of the community if all goes to plan.
By the way, follow up with AptMunich or me if you'd like to get involved writing or reviewing. He's the main man, but I can help get people started too.