Same for Skype.
Yes, most acquirers bungle the acquisition (regardless of nationality), but the reason these companies decide to sell in the first place is because their future prospects on their own don’t look great.
Skype was a consumer success but consumers violently hate paying for software (just read HN).
The market for video calls-as-a-business is entirely B2B. Skype with their fun whimsical branding and non-sales dominant culture couldn’t hack it. Plus, big dumb enterprises hate screening new vendors, so Microsoft/Cisco/etc were always going to win that space.
Zoom basically swooped in later able to take all the learnings from Skype and go B2B from the start.