Birds can still royally bugger up an engine and cause delays, we just don't hear about it as much in the news. This vid says it costs the industry over $1.2B a year, that's from cancellations and delays in addition to mechanical damage.
This vid is worth a watch just for the amazing graphics of birds getting totalled in jet engines
To anyone with a mission to cause issues, a £1k high end consumer level drone is pocket change compared to the damage it can cause.
These laws are pretty pointless, some real money needs to be dropped in drone prevention and control.
I watched a great vid a while back from a pro drone filming company where they had footage of someone on a super yacht taking over the signal of a drone circling it and nearly capture it. They were obviously able to intercept/take over the signal somehow. The tech is definitely out there. Will post the vid if I can find it, it was great as the operator was able to break free of the yacht's control and still recover the drone, so the interception method wasn't perfect.