Hmm.
While I do not know rightly or wrongly becuase I have no interest in those courses...
I would imagine that if the course states 'LEAD GUITAR COURSE', it would be a series of lessons which impart knowledge to the individual regarding the skill and technicalities on how to play 'lead guitar', not 'rhythm guitar'.
However if you do intend to go to such a course, my $0.02 is to learn 'rhythm guitar' (chords, timing, rhythm etc) before embarking on a learning journey of 'lead guitar'. That is if you're just starting out on guitar.
Good luck and hope you find what you need.