No I did not.
1) Dams are most beneficial and most efficient when built as up stream as possible. Any dam can only supply water to and restrict flooding in areas downstream of it. A dam built in Sindh will only benefit Sindh while a dam built in KPK, GB, AJK will benefit every region downstream of it, be it in KPK, Punjab, Balochistan, or Sindh. It would not be wise to invest millions if not billions on a project in Sindh when that same amount could be spent in KPK to benefit a lot more than just Sindh. The fact that your suggestion to build dams in Sindh is primarily driven to appease Sindh's political agenda driven objections against dams in KPK/Punjab makes the situation ironic.
2) You cannot build dams just anywhere. Geography plays a major role in dictating the size, feasibility, efficiency, and cost of a dam and its reservoir. Sindh has nowhere near the suitable geography to build any dam close to what can be built in KPK, let alone for the same cost. Especially, again, when the same money can be used to build better dams elsewhere which would also benefit a lot more Pakistanis a lot more.
3) Pakistan does not have the capital to throw around just to placate the petty, infantile, and idiotic regional politics of its people. They need to grow up or step aside. It's already embarrassing enough. We don't even have the money to build the intended projects let alone token projects to appease regional politicians.
4) The provinces will never be satisfied. Why? Because their objections stem from nefarious regional political agendas of their politicians. The same politicians who use their uneducated and illiterate masses to do their bidding and reinforce their political power. Or are you suggesting that there is merit to Sindh's objections? Sindh and its farmers stand everything to gain and nothing to lose from a dam in KPK. Yet they cry bloody murder over it.
ps: The link that you have provided is a proposal for a feasibility study for those 30 small dams. No feasibility study has been conducted thus far, let alone any study declaring those dams feasible. Also, those dams are small scale dams which won't be any good beyond specific local communities.