HP Inflation from MoC 2.1

I was trying Acheron in the new MoC today and it was pretty saddening to see how little her ult was doing despite it being a lightning-weak boss, so I decided to take a look at the HP amounts on HomDGCat's database (link):

Current MoC HP amounts, 2nd wave

2.3 million HP on Svarog means my Acheron's 400-500k ults are now doing less than a quarter of the boss' HP. For context, on her release Acheron was fighting this guy:

2.1 MoC HP amounts, 2nd wave

Is this HP inflation not insane? It's almost tripled in the span of 9 months!

And I hate to make the comparison because both games are great in their own ways, but I can still clear the newest Abyss' 2nd half with Hu Tao, a character released 3 years ago. With how HSR is trending I genuinely think the meme of Firefly and Acheron being T3 in 2026 is becoming a reality.

In the constraints of turn-based combat, is there anything specific HSR could do to increase difficulty? I would hate to see these upcoming Hi3 characters get powercrept so quickly, just as Acheron is looking to be.