Interdictions, and much much more, needs work. A LOT of work.
But, hey, Engineers are coming! Before that Power play was coming and before that Xbox was coming and before that CQC was coming. See a pattern?
I do. FD has consistently added new things on top of a buggy base game without addressing the issue many of us have been calling for for over a year now. I wish FD would take a look, like a lot of us have been asking, at the base or "core" of ED and fix that before they add things. I realize bug fixing, especially by pointing out the large number of existing, persisting, bugs and poor,sloppy game design, doesn't sell more copies of ED like advertising "New Features!" does but, IMO, FD has made and continues to make a huge mistake by continuing this policy.
I know some will say "But, but, engineers 2.1 is coming and they said bugs will be fixed!". Yes, yes, I know and we've heard that many times before , to no avail.
The OP's issue, while important, is just one of many, for whatever reason, FD has chosen to ignore in favor of new things no one asked for. I like new stuff as much as anyone but, if the foundation is shaking, the entire house will fall.
While I don't disagree at all, I don't think that FD see interdictions as being a big problem because it affects only a (presumably) small proportion of the player base. (It does affect me.) I have opened a number of support tickets regarding interdictions (the mechanics of, not the frequency) since 1.4 Beta, and support have always responded, and have always said that FD are 'monitoring' the situation. It's obviously not enough of a problem that they want to put resources towards it, plus, if it's network related, there's perhaps not a whole lot they can do.
I do agree that fixing underlying bugs would be a great move, and perhaps 2.1 will (for example) fix the mission issues that are so prevalent. If they do, it's a great signal, but if they don't... It will be a great shame.