I had the same thing happen to my DUC32's. It was great fun cleaning the caliper with a tooth brush after being covered in fork oil!
I contacted TF and Extra UK who both no longer service Maverick Forks but suggested contacting Sideways Cycles.
Spoke to a guy called Tim who was pretty helpful and chilled out about sorting them. I had them replace the seal, service them and replace a stanchion guard for about £80 posted back which I thought was pretty reasonable. Also a lot cheaper than sending back to the US.
I'm not sure if there is a way of reducing with chance of the seal blowing off again. Maybe adding a couple mls of oil if you bottom the fork out regularly?