Coach Comet wrote:
Well, let's see, no. It came from the previous film, Star Trek (2009). Spock Prime brought transwarp beaming into the new timeline from the Prime Universe, where it had originally been invented by Mr. Scott. That it was the same transwarp beaming used in STXI was, in fact, stated in STID.
With all the powerful technology that Scott had had to deal with over the years, including the Triskelion device besides just Gary Seven's, it would have been less plausible if Scotty Prime had never gotten a clue.
The use of long distance teleportation as a plot device for aliens of the week is only just about bearable IMO. Making it generally available to our heroes or the Federation is a plot-busting annoyance. Then trying to put it back in the box and say we'll ignore this from now on is dire in the extreme. If you are going to introduce plot-busting technology then build in a limitation off the bat.
I don't think that saying, this is really dangerous is sufficient, since it's usage to date has show limited negative consequences. They could have done this by overloading and destroying the transporter equipment on Delta Vega. It was a one off and 23rd century tech just can't cut it. If Keenser died in the explosion you have another reason not to try again.