These two things conflict:
1. "humalog/novolog ‘peak’ 60-90 minutes following injection"
2. "Suspend insulin pump for duration of aerobic exercise lasting less than 2 hours (may have to replace 50% or more of lost basal upon resuming the insulin pump)"
Item 2 above makes sense only if your goal is to end your run with an insulin deficit.
Just as an insulin bolus really takes effect between 60 to 90 minutes later, the insulin you are not giving yourself by suspending your pump during your short runs does not matter until after the runs.
Suspending your pump for short runs doesn't make sense because it doesn't affect you during the run. Suspending your pump for long runs is a bad idea because it limits the fuel you can take in during the run.
However, we're talking about less than two hours of a reduced basal rate. If your normal hourly basal rate was 0.6 u, then you reduced it to 0.3 for your run, and you went for a 90 minute run, it is a difference of 0.45 u of insulin, most of which will not even make it into your blood stream until after the run.
So if you want to suspend your pump, go ahead. But you shouldn't imagine it is a safety thing about preventing lows during your run.
If you are going to have a low, it is from insulin that is already on board, not from basal insulin during the run.
There are definite benefits of having some insulin in your system.
Principles 1 and 3 from your post are good advice that many have shared in one way or another in this forum over and over. Principle 2 is interesting, but not so much about how to manage diabetes.
I would add, as other things to do to prevent lows:
1. Test before, after, during. Wear a CGM if you can.
2. Carry a source of fast-acting carbs.
3. Wear Medic Alert clearly identifying you as type 1 diabetic on insulin.
Is there a reason you don't want to identify your trainer? I'm curious who it is.