I realize i'm a noob here and don't mean any disrespect. I agree, you shouldn't buy something you need today lacking a feature hoped for in the future (no matter how simiple/basic). The idealist in me would like to think of the Helix as a hardware platform for an evolving software feature set, but there are no guarantees of future updates/upgrades, so i hope people keep buying them to motivate line6 to continue to invest in the platform!
I might have known the midi sync feature didn't exist had I done more forum research ahead of trying to use it. I DID read the manual which didn't mention it, but did mention all sorts of other midi features (I thought "global tempo" meant sync) which is why i assumed midi tempo sync would be a baseline feature, but of course, i don't have a ton of midi experience. (I did build an arduino based midi tempo sync box that converts to analog tap for my nova delay and tap-a-whirl!)