If the news is true :
Like i said this, pakistan cannot depend on china entirely, china also having much problem with north korea, they cant back everyone up.
nowadays world demand accountability as well.
Even though US cannot be trusted forever, China as a backer and ally , must consider china's needs to be relevant to other nations too.
Most important thing is to keep CPEC going in spite of everything.
India will also want chinese support as well, given chinese powerful strength and ability to challenge USA global world order in 20 years.
India also realised there is so much opportunity for them to pull china over as well since china is russia key ally