I'm pretty sure everybody here can read. We are asserting that your sentence:

"These are obvious flaws in design, in my opinion, that warrant re-looking at, but to which no real improvements are being made for some reason. (Incompetence? Politics? Both? Who knows.)"

sets a very negative tone and makes your "list of problems" look like a "list of complaints that these incompetent losers should fix asap". In my opinion you may just not be the best writer for some reason (Lack of education? Incompetence? Both? Who knows).