Short answer - because we are comparing apples with oranges.
That's not to say we aren't doing terribly, and we do have pretty much the worst rate overall, but that data is looking at lots of different ways of reporting data. Which is not helpful, and detracts from the argument - people end up arguing about the minutae of the data, rather than the important issues. We should be raging about why we are doing so badly, not about memes created to get people frothing...
It also focuses people, again unhelpfully on our announced daily number, which is hugely misleading when it comes to the actual situation at this moment.
For example, our data as reported each day is, essentially "deaths with COVID that have come to our attention in the last day or so". Some 40% of the hospital deaths reported yesterday happened over a week ago.
For example, the daily announced number last Friday afternoon was 324, but so far less than 200 deaths have actually been registered for the Thursday.
It works both ways too - so far, data shows that on Sunday, approx. 175 deaths from COVID actually occurred, but the daily announced number of deaths on Monday was 111.
Spain is recorded as having zero daily deaths in 2 days this week;. However, two regions alone reported 17 deaths in that period. This is at least partly because the Spanish are now only reporting deaths that happened in the past week, and only adding yesterdays deaths to the daily reported numbers and then adding everything else as a lump sum once a week. It's incomparable to our numbers (and a change on how they used to do it, so incomparable to how they used to do it too!)
The attached graph (courtesy of @rp131 on Twitter) shows the folly of looking at the daily announced deaths (orange) versus the actual deaths.