Is this Islamic terrorism? Yes, it is.
Was there government/Intelligence failure in stopping it? Answer is yes again but I won't be hard on them because a terrorist only needs to succeed once but intelligence agencies strive for 100/100.
But where the government did colossally **** up is screwing up recruitment and not maintaining army equipment/upgrading to latest gen fighters/tech.
India cancels SAARC Visa Exemption for Pakistanis after Pahalgam attack. Military-diplomatic ties cut, advisors declared persona non grata. Indus Waters Treaty on hold.