It’s not my premise. I think HN is fine. Isn’t it the forum consensus of which you’re part that HN is unsafe?Both your "obvious solution" and the premise that there is no safe way down from Merritts Mountain House are a fiction.
The solutions being propounded are things the great bulk of people won’t actually do. So it’s more of HN, or new trails.
New trails are coming. Don’t stress it. That, or resorts will escalate prices well above CPI and cap ticket sales.