PDA’s are not acceptable in Pakistani society - use a cafe, friends house whatever - a PDA happening in UOL is highest violation that takes precedence over cheating, plagiarism, sexual harassment, broken toilets etc.
But it is still a violation of rules and the university took action. Unfortunately, Pakistani society being what it is took the expected response, either declare the offenders to be stoned and claim Pakistani nation is destroyed, or decry it as an attack on love.
The other filth in the society can live on because it is part of society and tradition.