When I brewed this I had the same thought. There seemed to be an inordinate amount of trubby debris in the fermenter. Almost as much as I had for the previous brew - an IPA with way more hop additions.
But I wouldn't worry about it. I can tell you that after nearly three weeks (in primary - I don't do secondaries) it has all settled out into a very compact layer at the bottom. I'm not sure what yeast you used, but it seems Nottingham does a nice tidy-up job and certainly flocculated well in my case.
I'll be bottling this weekend. Looking forward to taking a sneaky slurp and checking the pre-carb flavours.