Or you can get in a group with players with multiple knockbacks, position yourself to where you won't be leaped to easily... These are called strategies, they are something you want to incorporate into your playing style. They should be something that puts you in a better position(pardon the pun) to be successful.
And what strategies do LOLSMASHERS need to employ to be effective hmm? If Mercenaries need to have help in order to be effective then they are seriously underpowered.