I found out what is wrong.
The tutorial says to remove all double quotes "
and replace them with spaces or backticks `, but some values in the mentioned tables have double quotes around them. This one for example:
INSERT INTO "wp_usermeta" VALUES(14,1,'wp_capabilities','a:1:{s:13:"administrator";s:1:"1";}');
So replacing that with backticks causes malfunction.
Replace only double quotes around table names "wp_usermeta" -> wp_usermeta