Note that my boat trailer uses seals with no spring and the seal lip facing out (keeping water out). Grease is free to spill out.
Where as every other grease seal I own keeps grease in.
Just saying, EZ-lube versus Bearing Buddies doesn't really matter when the object is to keep water out. Grease will spill out.
I agree with regular maintenance (even if I don't always practice it religiously).