I've copied the official EasyList from
https://easylist.to/easylist/easylist.txt and pasted its content into my "My Filters" tab, in uBlock Origin's setting page. There are 3 apparitions of eevblog in there, each on different line, far away from each other:
eevblog.com###text-49
...
eevblog.com##[data-pagespeed-url-hash][onload^="pagespeed"]
...
eevblog.com##[href^="http://s.click.aliexpress.com/"]
If I comment out the second apparition in My Filters, like this (while the EasyList is unchecked, of course):
! eevblog.com##[data-pagespeed-url-hash][onload^="pagespeed"]
press Apply then refresh the EEVblog page, apparently it all starts to work correctly.
The culprit line was identified by trial and error. I have no idea what that commented out line means, or if this fix is properly done.