I think you are going to see a lot more of that in the future due to the EPA.
The pressures with the new 410A vs the older soon to be phased out R22 is twice as high.
There are going to be many many more Freon leaks bank on it.
Amen! The EPA strikes again! 410A is crap and practically eats through compressors due to the higher pressure. You have to wonder how that is more ecologically responsible than the wonderful R22 that rarely leaks and always works.