(per my suggestion on your other Q about this, I think you've come to the same result that I said)
sorry... still researching this. i've read this thread about 5 times. it all makes sense EXCEPT one thing:
On your FORM where you put a button that starts the People search, why did you have to Start a Process that did
"DISPLAY queryname"
when the button could have just done "Run a Query queryname"
I've tried both and the resulting query seems equivalent.
On both, there's an option for OUTPUT, so you could select New Tab.
I guess the answer is that in the older version you were on in 2014, something was different than now. Thats one minor annoyance with looking up forum posts that are a version or two out of date.