We have always stated that this is a Co-op First game and every design decision has to be with the co-op aspect in mind. But the Jump Boots detracted from the class dependencies unless everybody had them on.
If your goal is to not step on other classes toes, then you should also remove the Rocky Mountain Ale. The "1 less hit per terrain" benefit dramatically reduces the need for a Driller. Driller is already regarded by a good portion of the community as the least valuable class, and having this drink active further reduces the value of having one on your team.