A lot of the recent data about the nerves of the clitoris are from donated tissue from trans men who got theirs removed during bottom surgery, so your statement here isn’t exactly true. A lot of the issue is the sheer density of nerves in a very small area that makes it hard to study from cadavers, and there aren’t large numbers of people getting them removed to study them that way either.
A lot of the recent data about the nerves of the clitoris are from donated tissue from trans men who got theirs removed during bottom surgery, so your statement here isn’t exactly true. A lot of the issue is the sheer density of nerves in a very small area that makes it hard to study from cadavers, and there aren’t large numbers of people getting them removed to study them that way either.