I don't get why everyone is complaining about Intamin doing their take on what are effectively flat-rides. The Ultra Splash/Power Splash is a flat ride using coaster track. Intamin's version looks a lot better than Mack's with the unsupported single-rail track.
No one complained when Dreamworld got an Intamin Gyro Swing instead of a Zamperla Frisbee. Or an Intamin drop tower instead of an S&S one. In fact, some of the people complaining were suggesting that DW should have replaced the Wipeout - a Vekoma Waikiki Wave Super-flip with the Zamperla knock-off.
If Intamin can put a fun and unique take on a vertical coaster format like Maurer and Premier did, that's a good thing. If they can find ways to improve the single rail concept, that's great. If they want to do their own version of a PowerSplash, awesome. Maybe they'll adapt that single-rail track into other things when it is tried and tested.
As long as the ride experience is good, I don't care who built the ride. And most other people don't either.