Seems unlikely, all the events I have observed works as intended. There is however the chance that you remember the event from before June 16th 2022 (Be'lakor enters the Wastes! Patch 4.7.1 Notes & Hotfix) which did:
" Reduced the amount and size of waves of Standard Bearers and Bestigors on the Beastman Chest of Trials challenge."
EDIT: Want also to add that I had the event just yesterday and that this is really all of it.