To be fair, the combo wasn't really that complicated.
It was a specific sequence of buttons used in the same way every time things were off CD. I actually just made a macro that did the entire combo with a single button press.
Also, interestingly enough, the full "Complicated" combo wasn't actually that much higher damage than simply spamming Heat Blast throughout the Hypercharge duration (You'd just have to weave Gauss/Rico and Reloads in there)
You misunderstand. I mean, there's little reason to have Heat Blast as a button when the 123 combo skills could have simply gone from normal versions to "Heated" versions with similar effect.
To be fair, it wasn't really the Reload mechanic in of itself that caused issues for most players.
Typically it was the fact that your 123 combo was RNG based unless you used ammo for them, which then also meant that ammo was used ONLY for combo skills as guaranteeing the higher damage shots was worth more than simply getting the baseline potency added to any skill.
Which was another issue with the ammo system, in that all it did was add a bit of potency onto attacks... It would have been far more interesting if it would have altered skills in more exciting ways, similar to how WAR now gets Chaotic Cyclone/Inner Chaos from their Nascent Chaos.
While I can understand the notion about MCH being boring, since it kind of was before the Heated skills (Though, Clean Shot was always nifty, to jump up and shoot, in the rare circumstances you got to actually use it, which for me was only when Reload was off CD... Darn RNG...)
There's quite a bit that could have been done before resorting to conjuring up giant bullets out of nowhere and whatever Heated Clean Shot is supposed to be. (Also, it still irks me that SE don't know how bullets work... Both for MCH's Heated Slug Shot and also the recent cutscene with Gaius where he empties the chambers of his gunblade and rounds fall out that still have the bullets in the casings...)
Stuff like particle effects coming out of the barrel, particle effects from bullets striking the target, using 2 hands to hold the gun etc.
You know, the kind of things they do to make BRD visually interesting despite it also shooting projectiles at targets.