Luthier's explanations sounds credible, but they only explain a part of the issue. What he says about the amazing amount of time to accomplish the same things, or slightly improved ones, is indeed true, and we see it in everyday's life and work. And in video games imo the complexity increases exponentially with resolution, not in a linear way.
But (there is always a "but"
), in this equation Complexity is only one factor, the others being Good Management, Careful Resource Planning, Quality Control ... and as we use to say, a good explanation (excuse) doesn't replace a timely delivery, with the expected quality.
Anyway - no alternatives - I encourage the team and Luthier to work hard and finish strongly, a strong finish will make all of us forget the miserable start.
Cheers,
Ins