I agree that we should stay careful until we read reports about Heroics being performed with the yet to come 14.0 (no Lol Run, believable teams for quests, no Legend runs, no Impossible fight won etc.)
But…
Seeing Kabam's track record and the specifics of Dida's implementation of this mod :
A. Not sure Kabam would dedicate ressources to track behavior in 13.x for its remaining lifespan (1 week at best?).[*]
B. from what I did understand the current version (of the hack) doesn't send statistics on fights back to Kabam, just timestamped Start/end, won/lost, eventual life remaining on the champ (with connection interrupted resulting either in a KO or Halved Life for the champ engaged) and that's it.
[*]They barely budget their contractors and the beta test team is mostly comprised of *Bob from marketing* who needs 1000% boosts.
After the 12.0 debacle, they did bring few actual players, but those aren't real Beta tester and are all too happy to get insights to notice or report something that would hurt them when reverting to their rolled back accounts.
Cheers