Simple analogy I have made here before and got flamed for but I dont give a rats I wills tate it again:
I buy a brand new factory fresh car from the local dealer, it's full of bugs and issues... I take the Fing thing back and rant & roar at the sales guy for selling me a heap of .... If the vehicle is that bad I demand either a new car or my money back.
I buy a piece of Software, it has bugs, I rant and roar. Will ED give me refund? Of course not. Will they give me a new simulator? Bwahahaha. No.
It's not unreasonable to demand Big Fixes no matter the financial cost to ED, that's living in the real financial world. People are fickle and the customer is still always right. If DCS falls on its face over game breaking bugs then you can have all the professed realism you like but if the sim doesn't sim then word will get around and Falcon BMS, PrePar 3D V.2 with TacPac / @War etc will go forwards. Listen to the customer, fix what is broken. That's market sense.
DCS World is a fantastic product and has a great future with some wonderful people behind it and backing it's growth (at this point) BUT it needs fixing, soon.
So yes, in the list "Bug Fixes" needed to be in there and yes it is a viable issue to bring to ED's notice whether they like it or not.