It does raise concerns because some know the ground realities of the nation and some don’t. Some lived most of their lives in Pakistan while some didn’t at all. However, unlike other diasporas, OSPs are major contributors to the economy and do have immense connections with their countries usually. Even if the politics of Pakistan don’t affect them, they certainly have an effect on Pakistan. Take it as you will.
If at all in bombshell news, no Pakistani can keep two Pakistani passports. Not all overseas Pakistanis are the same. Only oversee Pakistanis that carry valid Pakistani passports should be allowed to vote. This allows you to exclude the diaspora that lives in the west and is disconnected from Pakistan. It allows you to include the diaspora in the Middle East and that very much is affected by Pakistan and Pakistan’s policies and will die in Pakistan.