Before I joined Bannerwise as marketing manager I worked as a digital marketer both as a freelancer and for large corporates. I've been in this game for over ten years now, so before the transition to the mobile web.
Looking back at the launch of the iPhone and the launch of Android we see it as a revolution, and it was. But it was also a time of everybody trying to figure out the mobile web. Mobile apps were new and responsive websites hardly existed.
Granted, early versions of Windows already existed but barely anyone used those except some corporate employees. And Blackberry was really a messaging platform and not a true smartphone as we know it today. Let's just forget about the nightmare that was mobile JAVA apps.
We've come a long way since then and what has become increasingly important on the mobile web is performance. Back then people were willing to wait because the entire experience was new, not so much nowadays.