I was late to this anyway. It seems it was well known Kane's Son would have the digitigrade legs since early July? I wasn't paying attention.
Strange to have a voice actor for an already dead character unless flashbacks or personal logs are what they're going for. The latter, with the addition of liberal static, might help cover up the fact that Stanton's voice has seen much better days (Skerritt and Weaver sound like they haven't aged a day). Could be I'm underestimating CA's sound engineer though.
And as you (I think) said, SM, it's unfair to judge a work from a peek given when it is still in progress.