Yes, how can they strip out the effects of COVID, the whole world shutting down, then the after opening up the dramatic rise in inflation, the war in Ukraine and the dramatic rise in energy prices, yet again causing inflation, more recently the Iran war with fuel and energy prices rising,
Why strip them out ? Unless you aren't very good with data. Much easier to remember that as global occurrences (like rain) they fell equally across all nations.
But frankly people who try to hide Brexit behind "global events" rather seems to forget that one of the warnings of "project fear" was that in the even of a global crisis, it would leave the UK at much more risk.
So trying to say "you can't say Brexit failed because of global events" is really a different way of saying "You know what we were warned about ? Well it happened. Sorry".