Is not a mortgage very similar to owning X% of a thing? Like, if I had a mortgage for $100,000 and I've paid $10,000 towards it, it's almost akin to owning 1/10 of the house (which would play out in the event of liquidation, all other things equal). That real estate tends to rise in value as an asset class is tangential to the topic of usary. It seems plain to me that there is a concept of the current value of something versus the future value of something, with the difference being expressed as interest (to some degree)?
Islam never denies that time and money are related, it just places moral restrictions on how money can be used in society without exploitation.
I'm not aware of Pakistan's Army deal with the IMF. If they took on an interest bearing loan, it's their problem they got themselves into.