If it was the case zoro would've reacted like momo and luffy during Zou
The breath of all things seem more like observation haki
They are both the same.
Remember me saying this and when it's revealed come back and state that I said it.
Both BOT and VOT use all 3 types of haki simultaneously.
Vot: uses observation to sense even deeper than regular observation to the point that only they can hear what's going on. It also exhibits Armament haki by projecting their haki into a physical form in which even other people can feel what they are saying even when that are unconscious (kaido feeling luffy looking at him with coc even though luffy was knocked out and knocked out luffy communicating to laws crew and momo). It also exhibits coc as momo was the only one able to command zunisha
BoT is different but it has the same function. It's more so used to increase the users ability via using all 3 haki types simultaneously.
When zoro used it he used observation haki sensing inanimate objects and even a slight smigit of future sight KNOWING where the rocks would land.
He then observed the metal body of M1 and applied the sharpness (ryou) needed to cut m1. Coc was also used since he bend the sword to his absolute will