p 240 of 493 of this PDF at
http://85.17.122.176/bookreader.php/139008/The_Letters_of_J.R.R.Tolkien.pdf
:'Helms too they chose' is archaic. Some (wrongly) class it as an 'inversion', since normal order is 'They also chose helmets' or 'they chose helm ets too'. (Real mod. E. 'They also picked out some helmets and round shields'.) But this is not normal order, and if mod. E. has lost the trick of putting a word desired to emphasize (for pictorial, emotional or logical reasons) into prominent first place, without addition of a lot of little 'empty' words (as the Chinese say), so much the worse for it. And so much the better for it the sooner it learns the trick again. And some one must begin the teaching, by example. (My other question on this passage.)
ODO: Used to suggest that an unfortunate event or situation is the fault of the person specified and that the speaker does not feel any great concern about it
From the passage alone, I guess that Tolkien does care about how it (= modern English) would be worse off without the 'normal order', and better off 'the sooner it learns the trick again'. So does the bolded clause in the ODO, contradict Tolkien's heed and use of so much the better/worse for?