Thank you for your extensive follow up comment. I have found it valuable to review what you have written both to evaluate what we have presented but also to have a peek into how a person who is looking into our work for the first time might react.
The big message that I take from what you have said is that proposals like accomplished based grading are interesting but what do they actually achieve when put into effect? This is indeed the critical question to be posed once one the basic concept has been understood.
I look forward now to reading your comments on the second chapter.