Funny how folks confuse data with "opinion."
Tire manufacturers will specify that the only acceptable tubeless tire repair involves removing the tire from the wheel and applying an internal patch with feature that projects into the hole as shown in ...
http://rematiptop.com/video.php?id=3
Consider an externally applied plug temporary.
There may be "opinions" that one can do less, but the better word is "rationalization." As in ...
At today's labor rates that repair would cost as much as getting a new tire. The part that I object to is reaming the hole bigger on a MC tire. Having fixed tires like that long ago, you always cut some strands when you do that.
Just a good inner tube patch on the inside with glue in the hole, on a MC tire that will be worn out in a year or less is sufficient.
My opinion
Rod