Perhaps not the most popular stance...
But here we go!
Granted, though we are often reminded of Boromir’s proud ways in this chapter, I do not feel that he was arrogant, but spoke out of the great isolation of Gondor and pride fostered by and exemplified by Denethor. Boromir’s bleak take on the situation, and it’s possible solution, also sounded quite a bit like his father speaking. And his 'I'm not begging a boon...' declarations sound to me as if he has been told not to ask help, but is trying to get around it some how. But I do wonder what turn the story might have taken if Faramir had gone to Rivendell, as he seemed, truly, to be the one called there.
Yes, reading the Silmarillion and UT increase the 'goosebump' factor of this chapter, but even without the full back history, you get the sense, that every corner of western ME is experiencing turmoil for the very same reason, desire of the ring. Though they do not realize the extent of that turmoil until now.