This is so wrong it isn't funny. You do understand that you can use Calderius's double jump in any direction, right? And that it can be used as a strafe? It's near impossible to get hit in a one on one duel if played right. He is a jack of all trades, and can melee effectively or take a build focused on ranged. He's extremely adaptable, which is great in a game like this. Flashbang OWNS bots when you add bleed damage and the triple shot augment. It charges very fast, too. Just because you prefer other characters doesn't mean he's bad. Calderius is an advanced character for a reason.
How is it near impossible to get hit? Even if your straffing most attacks at hitscans therefore dependent on your opponents accuracy. You're still going to get hit unless your opponent is terrible.
On consoles you also can't remap the controls (easily) and jump is stuck on X, so that's petty awful.
It also doesn't go in any direction, only moving you significantly forward with the lateral thrusters. That's not 'in any direction'. You only get significant multi-directional mobility with a certain upgrade, prior to that it's dominantly horizontal, but that doesn't make you unhitabble at all. Otherwise no one would be hittable on games like Halo. He's just harder to hit, but that's also mediated by his low HP, so he can get burst down pretty quickly, but he also has a much larger hitbox than when compared to characters like Thorn or even Orendi, so he's not as hard to hit as some others, in some respect.
Either way, I don't doubt his survivability. I just don't think he has that much impact on a lane. I disagree with the idea that his flash bang is devastating to bots. It does not wipe a wave and you still have to shoot them all substantially even after bleed. That's not especially substancial when compared to Orendi, Thorn, or Oscar Mike who can clear the wave with a single AoE, not to mention that characters like Thorn has her AoE and a high-damaging secondary spell. If you use Caldarius' blinding all you have is a pretty janky gettaway move left.
I also don't prefer other characters. I actually prefer Caldarius, but I think he is bad. I just feel as though I can get more done with other characters. Yes I can survive forever, collect all the shards in the world, and be a general nuisance, but I don't feel all that is any where near as substancial as the impact that more damaging, more reliable characters like Thorn, Oscar and Benedict.
I'm open to being wrong though. I'd love to see Caldarius played at a high level of play, though honestly I don't think this game will ever achieve that. Being honest, I think this games dead on arrival, really. Though I'm going to try my best to have fun while it lasts.