Dunno where you are getting that consensus from, but I would be confident in saying that it's not the best idea. Have a read of Any idea what these errors mean version 2.4.2 - #5 by jasontedor
If you are using the Elasticsearch Service then you can increase the size of the cluster when you are sending these requests, then downsize when done.
Or you can throttle things in your client when you get a 429.