It has been much worse.

A mud wasp nest was identified as a primary factor in the fatal Birgenair Flight 301 crash in 1996, which killed 189 people, by blocking the pitot tube of the Boeing 757's captain's airspeed indicator. This caused erroneous airspeed readings, leading the pilots to attempt to correct the aircraft's speed with the wrong input, ultimately causing a stall and crash. This incident highlighted the danger of small insects nesting in aircraft equipment, especially pitot tubes, leading to increased awareness and protective measures in aviation.