I wonder if Borland's tackle of Martinez was just a perfect storm of Borland wrapping up well and popping his hips in order to take down the runner, along with Taylor standing up straight and still trying to move his feet. What turned into a suplex probably wasn't more than what every good tackler tries to do on every play, you just usually see the runner go down instead of on a high-flying ride.
Even if Borland meant to do it this way, even in wrestling or judo, it's difficult to get such a perfect takedown, and I bet Borland never would have expected Matinez to actually fly up as he did. I bet he couldn't replicate this tackle on another runner if he tried, even with a smaller dude.
Having said that, he still should have been flagged, based on the precedent of flagging other guys for cleaner, faster hits, that the tackler often has no way of controlling. From a football perspective, I'm not really concerned about the Borland tackle. But from a safety perspective, I don't know why the refs would look at this any differently than any number of other hits that get penalized.
I do appreciate that Borland walked over to Martinez afterward, though.
...and Ochs grabbing Crouch's facemask was much worse than this.