I don't see why it's even remotely controversial to suggest that the overwhelming and increasing ubiquity of gambling in the sports world is an enormous contributing factor to the growing amount of players getting wrapped up in it. Don't act surprised when 24/7 gambling advertising captures more players.
If sports ads were as crucial to the alcohol industry as they are to gambling, I might too question their complicity in high rates of player alcoholism (which was, actually, a thing, regardless of it impacting players literally on the pitch during matches).
It is obviously terrible to sporting integrity, and I think the suspensions for these players are fair. But to look at them individually and ignore the wider sociocultural context? That's just lazy f***ing analysis.
I'm not saying there is a direct causal relationship. But the partnership of sporting leagues with the gambling industry is a significant piece of the puzzle.