Out of curiosity, what would you prefer us faster boats to do? Generally I just trim way down for a moment when passing while on plane. I lose 3/4 of a knot and flatten my wake significantly. To make less wake by slowing down, I have to be doing less than 7 kts (which often means not passing).
To be honest, I don't know. I hear what you are saying about the practicality of coming down off the plane to pass being not really feasible, but in more open waters there is usually space to give us slow-pokes a wide berth and reduce the wake to much less by the time it hits us, and giving time to at least turn from full beam on. The rules say to not pass on the plane closer than 30metres, I think.
The real problem is when, like I described in our bay with lots of channels, there is not the room to do that. Hence the tactic of the slow boat turning into the wake wave bow on, at idle speed, or nearly so anyway.
Actually funny though it may sound, and it would be frowned upon anyway, but giving a brief blast on the horn would help. Because it would alert a slow boat ahead that you're coming though, and give time to take evasive measures.
The worst scenario is when you are caught unawares, and unable to adopt the tactic I just described, so that all hell breaks loose, because you take, what by then is quite a large wave, beam on.
I believe from comments I've seen on this subject, that many call up on VHF to warn of the proposed overtake there in the US, but this convention is virtually never followed over here for some reason. In over 16 years of boating out here in Moreton Bay I never heard such a warning of an overtake given over the VHS, which I usually had on ch 16, the recognised calling channel.
Maybe that is something our boating fraternity should push for more strongly..?