I guess the rest should remain 5-10 minutes to get rid of hydrogen ions as quickly as possible as Pavel stated in a podcast? Because if I were to take 30-90 seconds of rest (like bodybuilders do), it would be almost impossible to get in that much volume of work without stressing my tendons and accumulating fatigue. Am I correct?
I'm theorizing here, not talking from direct experience, so take this with a grain of salt. Others feel free to correct me if I'm wrong. ("I am a student of strength.")
The stress on the tendons has less to do with rest/recovery and more to do with overall volume being tolerable. Therefore you want to increase your volume at a reasonable amount per week -- don't jump it way up at one time.
Accumulating fatigue is a good thing in the target muscle groups, if you're going for hypertrophy. You just don't want to do it in the overall body if it can be avoided to keep the focus on your objective. Therefore, bodybuilders fatigue the target muscle group, then another, with isolation exercises, as opposed to big compound exercises that fatigue the whole body. These big compound exercises (squat, press, bench press, deadlift) are GREAT for strength building, but not really the best for hypertrophy, unless they are programmed differently; i.e. 60% 1RM instead of 70-80% 1RM, and more reps and sets. That said, if you're doing enough heavy compound exercises, and recovering and eating appropriately, you WILL put on muscle.
Less rest (30-90 sec) is good for recruiting more motor units, which is good for hypertrophy. Going to failure is also good for hypertrophy for the same reason. (Obviously you only want to go to failure on a safe exercise, not one that puts weight over your head, etc.)
Long rests (5-10 minutes) is good for building maximum strength, so that ATP is almost fully restored and you are fresh for each set. And yes, getting rid of hydrogen ions, for all the benefits of anti-glycolytic training. But as Pavel states, acid is not all bad. A certain amount is good to trigger target adaptations. It just depends on your objectives.