I certainly understand and, frankly, I wish Trek & Bosch (and tech companies generally) were both more forthcoming about sharing their knowledge base about specific products. As a consumer and a former training curriculum developer for government and corporations, I’m frustrated with the ever more skimpy information as tech becomes ever more complex. User manuals these days are generally a joke and service manuals are becoming almost impossible to buy. I chalk it up to them just trying to drive business to the LBS.I totally agree on the taking of advice and the implementation of any practice.
And I too would have a little more confidence in my setup if it was produced by a major manufacturer that undoubtedly went through some process of coordinating the design of the battery /BMS /charger than the off the shelf systems many of us on the lower end of the market have.
The guessed interval is based on some experience in the time it takes a battery and/or charger to shed any heat build up and I don't know of any reason that harm could possibly come from it.
That said... play at your own risk