i did an un-stirred starter: i filled a 22 oz bottle about 70% full of 1.030'ish wort, pitched the funklandia, and it took off in less than 5 hours. i shook the bottle occasionally. a few days later i pitched that whole mess into 4 gallons of 1.055 rye & wheat wort and it took off like gangbusters. pitched at 68*F, kept it uncontrolled in my 67*F basement. a week later i racked those 4 gallons, along with 1 gallon of saison-only beer, into a secondary 5 gal carboy. filled to the top, sealed it up, see you in summer 2019.
i suspect that a pouch would be fine on its own, as the only pitch, in primary. there is clearly a lot of sacch in there. might take a while (24 hours?) to take off, but that will just allow the bugs to get a small head-start before sacch takes over. if i were to do it over i'd probably skip the starter and just straight-pitch.
FYI if anyone is interested in this blend, send me a PM. i collected a nice slurry from my primary carboy that i won't be using. it'll be heavy on the sacch but the bugs will be in there too. i easily have enough for 2 or 3 primary pitches. you'll need to pay shipping (or pick up in north bend or bellevue, washington, for free).