Earlier quoted context omitted.
It wasn't the right thing. People thew out their phones because they were slow not knowing they could have been fixed cheaply with a new battery.
Apple has offered battery replacements for years before they rolled out that patch. Replacing the battery would have fixed the issue at any time. It's not like they were holding it back.
Apple's own front-line staff (ie genius's) were not informed of the throttling. So if you complained of a slow phone you were told you were imagining it, or it was an inevitable part of the newer more complex OS upgrades.
At any rate, you were told there was nothing you could do.