In Book of Records we do not accept this in some records. Most commonly this occurs in the Highest fall/gravity records where people use this to avoid DMs. We check for this and if they do it we disqualify it

In Events it really depends. If you are doing the opener challenge and maybe want to kick off from the ground but your ankle breaks it most likely wouldn't disqualify you. Only if an event specified that you can't get DM'ed then it would be regarded as cheating

And in general, I guess it hardly matters. The replay community isn't some giant that commands people how to do replays. I personally use it sometimes, I guess some people may dislike it, but it comes down to personal preference.