Even if it was Excel, I wonder how many of those people crying for Dido Harding to be sacked would have done better. We're regularly sharing gigabytes of data over the internet all the time, and Excel still cannot deal with not-even-that-big data? What is a non-technical person supposed to do?
There is - it was stored as rows, but in an old Excel format with a 65,536 row format. Also, apparently neither Dido Harding nor NHS Test and Trace were at fault - they delivered results fine, it was a problem with an internal system developed and run by Public Health England (which is due to be replaced with an agency run by Harding, but hasn't been yet): https://www.bbc.co.uk/news/uk-54422505 So the article and its headline are both partisan and wrong.
A closer analogy would trying to hire someone "that knows what they are doing" (whatever that means) when you need the work done at 2am, in the midst of a crisis, on the side of road, while your house/car/genes are burning down.
This is really the problem here, the government was more interested in hiring its friends than it was in ensuring a competent response to the pandemic.
If you don't know how to implement this system, then perhaps you're in the wrong job.