I've checked this bank out, and it seems that it's indeed the biggest bank in Nigeria, so the event is big and positive news. One thing is some noname bank, but if we're talking about the most important bank in the country, this could have serious impact. For one, if this bank is interested, it would motivate other banks to get involved with Blockchain as well. What might be sad is that it might embrace Blockchain but despise cryptos. And given that the webinar is both on AI and Blockchain, I doubt there was a lot of time devoted to cryptos specifically... In any case, one webinar is not enough to understand the situation fully. I hope we'll hear more about this bank soon.
It is indeed the biggest bank in the country but its lack of human bankers-customers effective communication and nonchalant customer relationship flaws its strengths. They wouldn't discuss cryptocurrencies in detail as it is actually swindling customers away from using their services they would rather advice people not to invest in cryptocurrencies causing feuds amongst those who were able to watch the webinar till the end.
The whole ideas of crypto adoption is to render a selfless service teaching people who are eager to learn through different seminars hosted by individuals who are ready to teach and inculcate a depth knowledge into the audience, I don't think a Banking institution would want to host a webinar discussing what benefits Bitcoin and cryptocurrencies in general have.