I don’t know what is done explicitly at Warwick but I am a MSc student at UWE (also did my BSc there (graduated 5 years ago and got some experience in the NHS before going back to do said MSc in Biomedical Science).
At UWE, it is explicitly drilled into us from DAY ONE that if we fall back as little as 2 weeks, let alone 4, it’s grounds for considering us for termination of the course as two weeks worth of work is simply too much to catch up on, let alone 4.
Sorry to say, I see where your course leader is coming from.