While I agree with everything you're saying, that Apple did drop the ball initially, some other factors should be considered. Most people don't even have these machines yet, so a very small portion of the population could have even had this happen to them. Out of that small population, an even smaller amount even run BootCamp. Out of that even smaller population would have had their speakers at a high enough volume that could irreversibly damage the speakers. This is a lot less like a software update bricking or removing cellular functionality various iPhone models that are in the hands of tens or hundreds of millions.
And even in that case, Apple acknowledging this issue means that damage is covered under warranty.