Bill Paxton is one of the goons in that scene? No shit. I didn't notice. And I agree about the switchblades. I thought the same thing. You just don't see switch blades anymore for whatever reason.
As for Genisys, honestly, I didn't 100% hate it. I thought Arnold actually did well and was funny and the movie had its moments here and there. I liked it more than Salvation, but probably not as much as 3. The problem with all the sequels is that, quite simply, none of them come anywhere close to the greatness of the first two films. Why it is that no writers/directors can seem to make a Terminator movie that accomplishes that feat is kind of beyond me. They've had three tries now. It seems like at least ONE of them would have done it.