I hardly see this function as a major improvement to Skype and it is probably something that would be used by less than 1% of Skype users.
I don't know what the usage stats of Skype are but I bet they are down from the pre-Microsoft owned days. All they have done since they bought it, it fsck around with it, killing off legacy versions which meant that hardware devices like Skype phones no longer worked, changing the UI in every version making it hard to use, and I have found recently that even the quality of the video chat is poor compared to rivals.
Trying to Skype with my elderly parent and it kept freezing, dropping the calls, bad sound quality. Yet when we switched to Whatsapp video chat it worked flawlessly for the whole chat.
I wish they had killed Skype in favour of keeping the MSN messenger app, before they stopped developing it, MSN was better than Skype is now.