htaccess bad bot in access.log

I added this in my htaccess:

RewriteEngine On
RewriteBase /

RewriteCond %{HTTP_USER_AGENT} ^SemrushBot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Yandex [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^rogerbot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^exabot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^MJ12bot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^dotbot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^gigabot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^AhrefsBot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^CCBot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^spbot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Mjbot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^MauiBot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^SeznamBot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Barkrowler [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^MegaIndex [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^AlphaBot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Cliqzbot [NC,OR]
RewriteCond %{REQUEST_URI} wp-login.php$ [NC]
#RewriteRule .*  - [L,F]
RewriteRule . - [F,L]
#RewriteRule ^.* - [F,L]

Looking for example MJ12bot in my access logs with this:

grep --text MJ12bot /var/log/apache2/access.log

I should not see towards the end HTTP/1.1 403?

Instead I see:

HTTP/1.1" 200 10841 "-" "Mozilla/5.0 (compatible; MJ12bot/v1.4.8; http://mj12bot.com/)"

is something not working? What?

for wp-login.php seems to work, I see:

HTTP/1.1" 403 24328 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.1"

What's wrong?