This is precisely the reason why prior to linux support/removal, exploits weren't targeted. Once linux support was removed, linux hackers started releasing exploit after exploit on the target hardware and software, and it only took a couple months after they removed the linux support.
Upon which we found out that not supporting Linux on the PS3 slim from the get go "because they wanted to focus on games and it was too much effort" was a lie - turns out there was almost nothing extra that needed to be done for it to work on that model too, once the hacks were in place.
