I used to fill my cartridges with insulin straight out of the fridge - didn’t even wait 15 minutes. That caused a lot of air bubbles to clear out🤪. Now with the Omnipod I keep the active bottle in my purse - a bottle lasts me about 3 weeks.
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First, thanks for the reference, a good read, particularly with the input from manufacturers of various insulins. I note the paper dates to ≈2003; I’ve read other studies of more current issue, but with out manufacturer comments, including from Europe and Africa that studied various insulin types/brands in both pens and vials. One involved using wet clay pots in temperate/hot climates. All measured efficacy by both lab and actual use for up to 6 months, most noted some drop off of in impact, but nothing less than 90%. I don’t recall any reference to contamination checks or products, but there was no noted increased illness level that one might expect.
Second, I can’t help but notice the Novo Nordisk comment regarding Novolog (my current choice) in a pump: “NovoLog in the reservoir of an external insulin delivery pump for use during continuous subcutaneous insulin infusion should be discarded after no more than 48 h of use or after exposure to temperatures that exceed 98.6°F (37°C).” I presume they’ve now tested Novolog for a longer period of time and determined its ok for Novolog to go 3+ days in my Omnipod Dash (72 hrs plus 8 hrs of grace period I try to use). I also note the pod is worn on my person with an average temp of 98.6, higher if you consider a shirt, coat, warming vest (battery warming 
), or during higher temps experienced due to conditions of weather, illness, etc. I present these comments not to be argumentative but to point out manufacturers of products we use do not and cannot (if they want to avoid ire of the FDA and other regulators) discuss limits found others by others trying to determine actual and realistic limitations of real-world scenarios in which people live, work, and play with or without refrigeration or the ability to control temperature. They test to meet what they consider minimally acceptable usage by the FDA and we users of the product. I’m pretty sure they also keep an eye on the impact of longer usage times and temperature environments on the bottom line sales of product, though we can’t expect them to share that data or discussion with us. And again, I make no accusation, just being realistic; most, if not all, manufacturers are in the business to make money, not to be altruistic. My take, “Trust but verify!”