My take is that Hasina does not really see defence as important but she is not strictly saying no to BAF and other branches buying expensive cutting-edge hardware like fighters and frigates. The reason they are not doing so is that the leadership of these branches are corrupt and/or incompetents who are more interested in lining their own pockets than upgrading BD military capability.
My opinion is the opposite in this case. BD is not Pakistan, in BD the military does not control the government but the government controls the military. It is the job of the civilian leadership who need to have a vision of what kind of defensive capability they want and for what reason to defend against what threat. Then they need to give the job to the millitary leadership, the military leadership will then devise a plan and work out what procurement are required. The civilain government will then work with the military to create plans, schedules and financial allocations to it's ability to realize the goals.
It should not be like, military tells the government what they want and then they approve the budget. It should be the other way around, the government must tell the military what they want (high level objective, not technical) and military will work out the technical staff, send proposals and ask for money.
In our case it is a total failure of our government, they have no ability to understand the need for defense. I explained the reasons in an earlier post as I understand it.