While I use Canva regularly, and am impressed by many things it does, I wouldn't call it a one-stop shop. There are plenty of things Canva cannot do, and many longtime marketers for various brands realize it.

For starters, it's great for digital marketing and print materials processed by companies using the latest technologies. But try sending Canva's "print-ready with bleed PDFs" to your local printer who's been in business for decades and they'll show you how much they have to adjust files before sending it through the queue. This is one example of how Canva makes your job easier, and makes it possible for marketers with little experience to "design things," while making the task more difficult for a long-standing, established industry.

Canva also does little to help marketers deliver optimized content. The PNGs you download are most always too big for proper web- and email-loading, increasing website load times (a prominent killer of new traffic) and the way it processes smaller-file-size JPGs frequently ruins the quality. This means marketers for small businesses, who often put graphics together to go on websites and in emails, too, still need to optimize their graphics post download.

Canva is a great tool for certain things. For that, I love it. But it's not the whole enchilada when it comes to special effects, univerally print-ready PDFs and device downloading. And the latter two are essential to proper production and visitors acquisition and retention.