This surprised me also, till I realized the story was in the UK.
From my understanding it's much less common to get antibiotics in the UK vs US.
There's concern of resistance taken seriously for sure, but it's not like people are making out here - I had fluclox prescribed after an online consultation in Jan (for probable cellulitis) - they don't give it out like candy, but when it's indicated...
Maybe they tried something broad spectrum here, and what was necessary (and required the sequencing to know what it actually was) was something more targeted.
It does feel like they don't hand them out as often as they used to.
I've had 4 infections this year, including an ear infection, fingernail, chest (that caused pneumonia on my son) and one that caused my left eye to swell up.
I received no antibiotics for any of them, just a suggestion that if they didn't go away they might prescribe some. They all got better without them (except my son, who ended up in emergency and was given two different ones which cleared up his infection rapidly).
In the past though I'm pretty sure I would have been prescribed them immediately.