I'd like to direct your attention to the prior games in the series we're discussing, which have no such issues despite being made by Fromsoft. This "hurr durr issa Fromsoft boss get used to it" schtick is fucking insufferable and ignores the 15 years of history that company had before making those godawful Dark Souls games.
The arena is honestly pretty close to how it was in the old games. Hell, in 4A, if you beat White Glint in the story missions before beating her in the arena, you got to skip the arena fight entirely on account of her being dead.
Forcing players to use a specific build goes against the entire spirit of the series, though.
In 2 and (I think) 3, there was a fifth class of legs called "hover" that basically acted like quads do in hover mode in AC6, but bound to the ground unless you boosted. IIRC, they had the easiest time getting airborne from a boost, but had no unboosted jump. Basically, they were faster treads that could move sideways.
Think of it like this: you need a bunch of data points to determine the average of them all, but if you're only given the average of a group of numbers, you can't then go back and determine the original data points. It just doesn't work like that.
Yeah the arena disappointed the very shit right out of my ass. I just finished it last night and expected the S-rank contenders to be even slightly more difficult than the D-rank ones, but they weren't.
It's a Dark Souls boss, not an Armored Core boss. AC bosses in previous games were usually (with the exception of For Answer) just other ACs with really good AI piloting them, not giant, unique things with mechanics that you don't see anywhere else.
That alone is enough for me to wish they'd called it something else.
I'd like to direct your attention to the prior games in the series we're discussing, which have no such issues despite being made by Fromsoft. This "hurr durr issa Fromsoft boss get used to it" schtick is fucking insufferable and ignores the 15 years of history that company had before making those godawful Dark Souls games.