The zip file is named Blur_Version.5.5.893.XT875.Verizon.en.US so it has to come from 5.5.893. In terms of bricking, mainly I've heard of it failing to install, but those were trying straight from 5.7.893.
.902 is currently in testing so you might want to hold off on flashing .901 since they may not be on the same path. Granted you could still most likely recover by flashing back to an earlier version and re-updating, but it would be a hassle. Just something to consider. Hopefully .902 or whatever the final version is will be pushed soon.