My opinion: yep...it's quite damaging, indeed! I've been slugging through just trying to get my load factors up and saw some light at the end of the tunnel when I reached the mid-60's. Seeing that I was on my way to actually making money, I leased the last three aircraft I'd need for the routes I selected. Then, WHAM!
Bird flu! K...maybe the impact is a bit harsh, but as long as it's a random event with a fairly low rate of incidence, I love it! I initially panicked, but fortunately I'm not enduring the massive losses you are with my very small turboprop fleet. It just hit at the very wrong time...kinda how it does in real life.