Apparently it's not only my problem, as I was just playing a game where I felt really, really desperate (and that's the world that describes my overall feeling from playing LoTV the best) - and then my oponent gg-ed, because he was likely feeling even worse off. We both had a shitload of bases across the whole map (as in almost every base on bloody Echo taken), but apparently that's still not enough to make you feel not losing in LoTV.
Hand in hand with this comes another observation: there seems to be a lot of cool stuff added into LoTV, most of which doesn't really matter if you aren't fast enough. I have gotten at least some grip of the Zerg stuff after trying the various units, but I have absolutely no idea what Cyclones or Liberators - they have some animations that probably do something, but I just don't have the time to care during the game, as in LoTV I must play at 100%, not watch some units I can't give orders to. What is the point of all this cool stuff then? Well, you can watch it on stream - or in replay, as I did today to see what the hell (my own) Parasitic Bombs do ... It's not just the extensive base management, but also becasue most of the new stuff needs me to actively do something with it, eating even deeper into any free time I may have during the game.
Yes, it's sometimes fun - I love Lurkers in particular, it's almost BM to take 15 Lurkers, run up to the oponents army, burrow them in their face and BOOM the army is gone (if it's for example just gateway units or pure roach. But I don't think that this will really fly with people even slightly more casual than myself, the game is quickly turning into BW 2.0, at least when it comes to mechanical demand.
The upside is that after some LoTV I will probably feel absolutely godly coming but to the easy relaxed game that is HoTS.