Professionals somehow fuck this up. Amateurs certainly do.
Note what Funster specifies: this is load ON THE REFEREE.
The answer is simple: move the load to the players.
Guess how the Real Hobby works? By distributing the cognitive load to all the participating players. This also includes a major change in mindset: you only play with people that are High Trust and Low Time Preference, which is not everyone current in the hobby scene, and thus those that cannot be trusted to play within the rules without supervision are those that get shoved beyond the gates.
The next big mindset shift: You Are Not Smarter Than The Game. Read The Fucking Manual. Study that thing; it's the user manual to the machine you bought, so read it and study it as if you were learning how to use any other complex machine with interconnected mechanisms that have internal feedback loops which affect performance. Write down, or draw, procedural flow charts if you have to- or watch someone else's video doing so, like a certain Hawaiian man has done.
In short, Referees are not demanding enough from players. This is a hobby, not a passtime; you are expected to put in work for hobbies. Make them shoulder more of the load and the rest becomes readily handled; let them handle Encumbrance, tracking durations of effects, etc. instead of the Referee doing it all- and that applies to all other modes of gameplay. Those that can't or won't get the boot; they want an analog videogame, so just make them play videogames.
You realize that this is normal in boardgames. This is normal in cardgames. Only in Tabletop do people think it is not, and they are wrong.
The collapse is going to involve more than the commercial sector falling away. Lots of people who have no business being here are also going to go, but those who remain--and those who come in after--will be higher-quality people, and the hobby (now back underground where it belongs) will routinely produce superior results and experiences for all the hobbyists thereafter.

