Xionia, IHO and Bobzhome recoveries will flash the update just fine.
You can always go back to the recovery you like after you flash. These others just can't handle the actual flashing is all. Mine has had the radio flashed 3time already and will probably get it done once more for testing purposes.
A few were bricked before we understood the issue, had any of them read the page for the recovery they were using, they would have seen that is said you cannot flash radios with it. Another person ignored the warnings and bricked his.
Those were all in the first 50 downloads, there is now around 300 downloads and I haven't heard of anymore bricks since. It's safe so long as you are smart about it.