Hi,My guess is that Pakistan was planning a large-scale coordinated attack on strategic Indian facilities using quasi-strategic weaponry (think Ra'ad, Babur, or MRBMs) or vice versa, which raises the risk of nuclear escalation. Keep in mind that Pakistan does not have a no-first-use policy. It's possible that Pakistan downgraded their plans to taking pot shots at IAF bases following US intervention.
Another possibility is that the US was concerned about its personnel that are present at select PAF bases and their administration caught wind of an IAF plan to attack those bases (or a Pakistani plan that could foment such retaliation).
no more US personnel in any of the PAF bases anymore, but since USA and India in QUAD can be
US or other nation personnel in India, Pakistan use to have at Shahbaz base in jacobabad but not anymore
thank you