Yes, quarantine is absolutely a must. Two new animals equals two separate rooms entirely.
As pet keepers it's our responsibility to give them the best care we can. And skipping quarantine is irresponsible and unfair to the animals.
They don't get a choice, they can't tell us if something is wrong. We have the choice to respect our animals and care for them properly or to neglect their needs.
Part of making the responsible choice of pet ownership is doing research and learning about these animals before bringing them home. The more we know, the better we can care for them...and they deserve that.