But if they have an online view, why not make it readable? The suggestion above about the line height is presumably a 1-line CSS change.
Or if you think it actually was, this was not a project that I'd want to get involved in.
As someone who reads mostly ePubs, many of which suffer from issues this project aims to fix, I mean that in a very caring way.
from my own experience, Alex is very amenable to improvements. the online view of the ebooks is just not used by probably anyone to actually read the books (just use an ereader app or device its a way better experience anyway) and because of that no one has cared to point it out until now