Direct from #33088, Advancement Committee Policies and Procedures --
"There is no restriction or limit on the number of merit badges an individual may be approved to
counsel for, but they must be approved by the committee for each specific merit badge.
There is no limit on the number of merit badges a youth may earn from one counselor.
An approved merit badge counselor may counsel any youth member, including his or her own son,
ward, or relative.
Older Venturers, age 18 or older, make excellent counselors."
It appears that the person writing the FAQs put in his own bias. #33088 is the rulebook, not a newly posted FAQ webpage.