I am not discounting the validity of the argument to bid on brand terms and I bid on brand terms for most of my clients...but I always disclose this inherent bias before making a recommendation...
In truth, every brand should test for themselves how it impacts their bottom line and if protecting their brand is worth the spend...
------ The cynical voice in my head thinks that most digital advertising today is really ad tech companies hijacking revenue that brands earned already...and if not for competitors using that same tech, no one really needs it... (i.e. remarketing, custom audiences, branded search, first party data, etc...)
In reality, I actively spend my clients money on these tactics and congratulate myself on the results I generate for them... but in the back of my mind I am waiting for the ad tech bubble to burst and media companies disappearing and being replaced by branded content, content marketing, etc...
Edit:spelling