Through your practices? Neat. What do you currently deadlift and put overhead?
EDIT: Nevermind, checked your profile. 6', 145 pounds, 245 deadlift, 95 pounds press. No offense, but you need more practice.
I spy with my little eye... two excuses in that sentence. Dude, you're not an ectomorph, you're just tall, skinny, and active. And you don't have to worry about CNS fatigue, you have to worry about smart training and ample nutrition to allow recovery. Overthinking is a progress-killer.
If there's one way to ensure athletic and physical progress, it's to always do things you prefer and not waste time or effort trying to do challenging things that are uncomfortable and no fun. Yep, good call.
For squirts and giggles, what if I made a case for med ball slams and side lunges as being the two most primitive movements? I mean, it's just like smashing a rock down onto prey or ducking out of the way of an enemy's spear. Make sure you actually have valid reasons for doing any exercise.
Information from studies must always be filtered through real world applications. Do 12 sets of laterals and then jump, and do 12 sets of calf raises and then jump, and see which pre-fatigued muscles reduce jumping ability more. Or better, consider jumping with a strained delt muscle vs jumping with a strained calf.
I wouldn't say insane, just slightly off the mark. They're very good exercises, but I can probably think of a half-dozen other exercises where a strong argument could be made for them to be ranked higher (such as the front squat, power clean, swing, or push press). Nevermind the fact that any kind of "only do one or two exercises ever"-situation is mental masturbation at best.
Like dt said, I'm not sure why we have to only pick two anyway. A well-designed program doesn't intentionally limit itself to only two exercises before even being designed. For sure, it can be done, but if we're talking about someone with severely limited time in the gym, "just pick two awesome exercises and do them" is a superficial and inefficient way to design a program. There are several variables to consider.