Bill Gates was the man who believed the Internet would not succeed. Of course every "old tech" will dispise the "new tech", because it is threatend to be replaced. Still every new tech will survive.
But if your tech has such holes in it... you need to be more concerned about economic rivals like an alternative blockchains that is here to kick you (steem) out of business.
Thats why it should be fixed asap.
I recall reading Bill Gates' book 'the road ahead' around the year 2000 when he spoke of his plans to launch a large number of low level satellites to provide internet everywhere - so I'm not sure when he thought the internet would fail, but it must have been very early on.