There is not currently direct support for FreeBSD and it's being tracked in this issue.
That package is not maintained by Elastic:
Name : kibana43
Version : 4.3.1
Installed on : Fri Apr 1 22:28:30 2016 UTC
Origin : textproc/kibana43
Architecture : freebsd:10:*
Prefix : /usr/local
Categories : textproc www
Licenses : APACHE20
Maintainer : email@example.com
WWW : https://www.elastic.co/products/kibana
Comment : Browser based analytics and search interface to ElasticSearch
repo_type : binary
repository : FreeBSD
Flat size : 83.5MiB
Kibana is an open source (Apache Licensed), browser based analytics and search
dashboard for Elasticsearch. Kibana is a snap to setup and start using. Kibana
strives to be easy to get started with, while also being flexible and powerful,
just like Elasticsearch.
Kibana 4.3 is compatible with Elasticsearch 2.1.x.
Locked : no
Looking at the rc.d file (/usr/local/etc/rc.d/kibana) it appears the package is installing node as a separate dependency and not using the binary (bin/kibana). You might be able to install using
BABEL_DISABLE_CACHE=1 node /usr/local/www/kibana43/src/cli/cli.js plugin --config /usr/local/etc/kibana.yml --install elastic/sense but I was unable to get it to work.
My suggestion would be to use a supported distribution RedHat/CentOS/Ubuntu or anything Debian based. You can there install with the package manager or using the download from the download page: https://www.elastic.co/downloads/kibana