Flight of the Gibbon, a different company take you to Mae Kampong waterfall. they have a very similar package. I went there two months ago as well and I enjoyed the waterfall a lot, despite the steps.
Jungle Flight only started 3 months ago, it is in the same area. they don't take people to Sankamphaeng hot springs though, only to a smaller one nearby. they do transfers from Chiang Mai via Doi Saket, not on the Sankamphaeng road.
I think it was a mistake to call the adventure "Jungle Flight", I'm sure I have not been the only one who got totally mixed up, initially thinking it was the same.