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For 100m all out sprints wouldn't it be advisable to do something more than a jog in the warm-up? Maybe another five minutes and then strides working your way up to near the expected pace to get everything warm? Otherwise something might go twang!
800m repeats six times is 4.8k, at about 3k pace? Although saying half-mile repeats and then prescribing 3 minutes is a little confusing. I prefer the 3 minutes, but really, 35 mins of 3k intervals? Wow. This really is aimed at the advanced VO2max improver.
5k pace + 30s is about 10k pace according to the little prescription at the start. So 10k pace for about 40 minutes? For quite a few runners that's a bit further than 10k, and even for a decent 50 minute 10k runner that's one hell of a session! So this one is aimed at a completely different group of runners to the half mile intervals?
I'm a little stumped on the intent of the exercises, and whether they are applicable to all grades of runner, or whether you should work slowly up to everything suggested, regardless of starting fitness.