March hardly qualifies as a necro considering this is the only thread for this mod, and the objections are still valid (which they are). I could have simply re-typed what he said without the quotes, but what would the point of that be?
Anyway, 15 STR is quite significant unless you are powerhousing that stat. Considering that historically, nobles also spent a lot of their time reading, learning languages, history and other non-martial arts as well, and were still perfectly capable of wearing plate, a requirement of 20 STR is absurd.
I also only managed 17 STR maximum from the onset, but then I had to choose man-at-arms for my father, craftsman's apprentice for my childhood and being forced out of my home as motivation - I was allowed Squire as profession, but a typical knight's background yielded me a strength of 13, agility of 4(!), intelligence of 6 and charisma of 5 - and that's after I poured all my extra skill points into strength. Now, if 15 is "not significant", those stats are positively crippling - especially as a knight would specialise in all of these, and not just focus on one or two. And not just historically, but in the universe of ASoIaF as well. The requirements of this mod precludes players from being all-rounders, which is what knights were. Alternatively, if 15 is "not significant", the beginning stats for this mod should be considerably higher, ranging from 10-19 instead of 4-13. But in this game, functionally, anything above 12 (or below 9) is significant.
Armour was never restricted because you needed to be particularly to wear it, but because it was expensive. A requirement of 10-12 in STR for wearing full plate harness is more than plenty. Access to armour will restrict itself from cost alone.