With Chinese conglomerate ByteDance's fast-growing social media app TikTok namingKevin Mayer, the Disney executive who oversaw the launch of streaming service Disney+, its new CEO late Monday, Wall Street analysts weighed in on the appointment and what it means for the broader sector. Less than three years old, TikTok has been on the rise and aided by the novel coronavirus pandemic, surpassing 2 billion worldwide downloads in March.