Not sure why you’re commenting after your first line saying you had little experience?
I doubt Strava is replacing racing because it’s nothing like an actual race.
One of the main issues was that back 10/15 years ago if you wanted gravity based riding you raced/rode DH as there wasn’t the do it all bikes and large amount of trails we have now.
You can have a 6″ travel bike and ride anywhere and everywhere.
DH is struggling for other reasons too. Even the French nationals. Because it’s the same tired tracks and limited amount of riding for quite a lot of expense.
People will either be uplifting or on a trail bike somewhere.
A lot of former DH racers are racing Enduro too.