The Actual statement is defined as follows which seems clear enough to me :
YOU MAY NOT SELL KITS OR DESIGNS BASED ON THIS PROJECT
without express written permission from the author. Schematics, Code, Firmware, Ideas, Applications, Layout are protected by International Copyright Law.
YOU CANNOT redistribute, market, manufacture or sell the ******** products, PCB's, circuits, builds, variations and units described or discussed herein or on this site.
YOU CANNOT redesign and sell variations based on the ********* OR *********** code without authorization and permission.
Permission is granted for personal and Academic use only.
I take your point but then that was your decision to allow it - there is a vast difference