Regarding your last point (and also from the POV as someone who works in ticketing but not for TM) -- many organizations I work with (non-TM venues) and for are

Regarding your last point (and also from the POV as someone who works in ticketing but not for TM) -- many organizations I work with (non-TM venues) and for are now transitioning to a lower unified fee structure. That is, a single fee that is the same no matter the sales channel. This trains our customers to expect a small fee at all times, we can keep that fee very consistent, and is often more in line with the nature of the agreement held with the performer regarding net adjusted gross income.