Indeed, I wouldn't look too much into this. The article is more a part of the media's anti-tech campaign and less an indication of the overall investor sentiment. We'll see in the IPO how it actually performs.
What kind of "tech" is Deliveroo exactly? Did they invent some kind of new graph theory or search algorithm that enabled their business? The only "tech" seems to be in working around employment law. This is like calling a sweatshop "tech" because they "innovated" a way for employees to be paid below minimum wage.
Just an app and website, just like Just Eat, Uber Eats and Foodhub.
Can place an order by just calling them, most restaurants display their phone numbers online. Shockingly, yellow pages still exist in the UK even online.