@Keels and I discussed this a bit. Fitzgerald is a very "hard sell" kind of guy and his sales tactics really turned me off, so I ultimately didn't get the program when I was really almost ready to shell out for it with a little more consideration.
@Keels (it doesn't seem to be tagging for some reason?) said she knew a running coach who had a similar type of training plan and shared it. It is definitely fairly time-intensive (I would say 75 min 2x per week) and equipment-intensive. I cut out a few things that I was doing in other places and adapted a bit to equipment. I did that for maybe 10 weeks. Ultimately I couldn't stick with the time commitment.
It did, however, give me a few new exercises to use and made me re-think the emphasis I place on different muscle groups, so I've kept that in consideration in building the current routine that I'm using. (Background: I've been doing pretty serious strength training for 10+ years. I got into strength before tennis or running. So I have some moderate knowledge.) Also, it confirmed the idea that heavy weights and low reps can be beneficial to strength training for running.
If you're relatively new to doing total-body strength training, then you'll see gains pretty quickly with a pretty basic program. Especially since you're male.

An array of dumbbells (or a set of the ones that you can dial in a weight) and a pull-up bar will get you a long way. Focus on compound moves, which is a time-saver, especially since you're not looking to build a "physique" but are looking for functional strength.