The size of your funnel doesn’t matter if it points to a site that won’t perform.
It’s fun to play with all the shiny, traffic driving toys, but focusing on the platforms you own pays the biggest dividends.
Comparing this strategy of focusing on traffic without caring about site design isn’t quite like putting lipstick on a pig, though it’s equally misguided. It’s more like devoting all your time and energy toward inviting your mother-in-law for a nice dinner at your house, only for you to fail to clean your place.