Baat toh sahi karraha hai.
"BrahMos can't be intercepted" is a jingoistic & baseless claim made by fanboys & marketers. Sure it's faster than turbofan-powered Western SSMs and that introduces complexity into the interception, but this isn't anything that major Western navies haven't thought about or developed countermeasures for.
After all, they've been facing threats from Soviet/Russian SSMs with similar or superior speed than BrahMos for the better part of Cold War - like Kh-31, Kh-15, P-800 Oniks (Yakhont), P-270 Moskit, P-500 Bazalt. P-700 Granit etc etc.
Specialist supersonic target drones were developed to mimic these targets and most contemporary Western SAM systems are proven to be capable of intercepting targets of Mach 2.5 or above, even while sea-skimming.
en.wikipedia.org
They even purchased a version of real Kh-31s:
After the fall of the Soviet Union, the Navy acquired the same Kh-31 missiles that threatened its ships and made them into anti-ship missile targets.
www.thedrive.com
The GQM-163 Coyote (with RAMJET engine just like BrahMos/Kh-31) is the current SSM target, capable of speeds up to Mach 3.8 at altitude and Mach 2.6 while sea-skimming -
The RIM-66 SM-2, RIM-161 SM-3 and RIM-174 SM-6 are all proven against this Superosnic target:
Raytheon SM-6s Missiles intercept targets in 'engage on remote' tests
www.navyrecognition.com
As is the RIM-116 ESSM point defence SAM:
Before construction of the RAN’s Anzac class of eight FFH frigates was completed their need for better weapons and self defence capabilities had long been evident, especially in respect to anti-ship m...
www.australiandefence.com.au
As is the Aster-30:
The French Navy has successfully completed the first aerial target live fire of the US Navy’s GQM-163A Coyote Supersonic Sea Skimming Target (SSST), off the Ile du Levant coast, France.
www.naval-technology.com
I'd bet systems like SeaCeptor/CAMM are equally capable as ESSM if not better at this.
So yeah, thinking that Brahmos is some invincible silver bullet is wrong. What the BrahMos can do has been continuously done by Soviets for over 30-40 years - yes, it's probably the most advanced version of those capabilities, but there's nothing fundamentally unique about BrahMos that makes it un-interceptable where other similar Russian SSMs aren't.
What do people think? We, the Russians, the Chinese are all stupid to be pouring insane amounts into development of Scramjet-based Hypersonic weapons if we think the current crop of Supersonic Ramjet weapons themselves have no answer from the defending side?
PS. and needless to say, no, Barak-8 isn't the only SAM capable of intercepting such SSMs.