Hey there, thanks for the comment! We made some changes in 0.17.1 to bring those scenes in line with the later plot, but I gave it a read over while reading your comment and noticed I missed a bit in the second scene! Whoops! This is adjusted now and should fit in a lot better as of 0.20.1/0.21.
Right now we're focusing 100% on Tai's route and I don't expect that will change anytime soon. Reason being that the very reason we had to make adjustments like the above to Diego's route was that we didn't have things as well planned in advance as we could have. During December, we took the time to plan Tai's route out in significantly greater detail in order to improve consistency and ease our workload in the coming months, however due to the myriad of other changes we made during that month, we didn't have time to do the same for any other routes. Unless we find the time to do so, we likely won't be delving into any of the other routes until Tai's is wrapped up.
I think that rogue pixel issue with Axel's sprite was fixed in 0.20. Take a look when next months update arrives. I can't see anything on my current dev build at any rate, by all means let me know if I've missed anything.
The interactive scene was our first, but certainly not our last! Next time we do one, we'll more than likely take it further!