I guess that capital case is a stylistic choice but it's inconsistent on landing page.
Main headline has all words' first letter capitalized (screenshot 1). Page dividers (looking same as headline in terms of visual representation - horizontal background with horse art) are written as normal sentence (only first letter in first word is capitalized) (screenshot 2). Page subdividers (?) are capital case (screenshot 3).
While smaller sections having distinct appearance from headlines looks fine, I believe all headlines should be written in the same way.