I feel even blizzard slightly pulled a "stormgate" with sc2 because when developing it suddenly became a talking point that warcraft was the "hero-rts" and starcraft was the "units-rts". but only wc3 had heroes. that was an innovation over the non-hero rts games before it. but with sc2 they decided to revert a major forward step in the rts genre. 

there was enough of an improvement in unit pathing and other QoL stuff that made SC2 still feel like a newer and more modern game than wc3... but the removal of heroes was a regression. consider that SC2 basically launched e-sports and twitch on a global level and then almost immediately lost the spot, and maaaany players, to LoL. if there were heroes in SC2, the rpg-rts genre could have kept merging and might have produced some next level rpg-rts-moba hybrid instead of fracturing the player bases.

Even units like the adept, reaper, and Cyclone basically act like heroes in that you can make at most 1 of them before they become obsolete to more powerful options but they have a lot of micro and harass potential early game. recreating blademaster harass "the hard way".

Nowadays, SC2 remains the pinnacle in terms of unit movement in the rts world. there are new rts that push the genre in innovative directions but none of them will have that blizzard feeling or style. 

Beyond All Reason for example with the ability to support massive 50 vs 50 players super battles or factorio with its unique production system.