I mean, I understand that yes, there are many things in the live-action movies that don't slavishly cater to "the source material" or even flat-out change it, but what I think a lot of people (somehow) forget is that "the source material" for a lot of these franchises is anywhere from 25-60 years old; and in that time has been reinvented to varying degrees many times over. Essentially all of the core concepts of the Transformers franchise are present in Bayformers, along with a lot of little concepts that are the same, altered slightly and changed. Bayformers is as true to the "source material" as it needs to be, in my opinion.