"The hyper-sonic Oreshnik system, which reportedly can travel between Mach 10-12 is equipped with six rocket propelled warheads that can hit targets at such great speeds, making them very difficult to intercept and defend against."
- This is not correct.
It contains a MIRV warhead, where each of the individual warheads themselves break into smaller submunitions.
'Oreshnik' means 'Hazelnut' and if you look at the flowers of the hazelnut tree, as well as footage of the attack on the missile factory in Dnipro, you'll see it's aptly named.
Oreshnik, brings kinetic deep-strike capability.

"Such capacity by the Russian military must create a caution in the minds of NATO military leaders. If nuclear warheads are used with the system, devastating blows could be made on NATO targets, without NATO forces having the ability to stop such strikes."
- Western missile defense and their million dollar interceptors which need to be launched 2at a time to hit a $1000 drone, have now been rendered obsolete.

Modern wars will bankrupt nations before they achieve any kind of significant outcome, but make a lot of money for Blackrock and other military contractors they're invested in.

Does it really matter?
The planet, as we know it, is knackered, drowning in a plague of homo sapiens who show no signs of wanting to change anything.