Sony reserve the right to remove features from their Software.
It's in the ToS agreement. If you don't like it, don't install the software.
As for going back on their word, well who can blame them with hacks looming?
I'd go back on my word about leaving my back door unlocked if people threatened to start stealing things from my house too.
besides, Install Other OS option was just taking up valuble space in my XMB like it was for countless other PS3 owners.

Proud Sony Rear Admiral







