It sounds like WK is working on these two issues. The site just recently added another voice actor… and the site is redoing some of the context sentences (as per a post reply).
Here’s my suggestion: Why not utilize the voice actors to give us sample readings of at least one sentence? It would help to HEAR the kanji spoken within the context of a sentence. After all, the sample sentences are supposed to help us read the kanji… It would be somewhat of an easy thing for a voice actor to do. And it would help the site and us learners immensely, I believe.