It's what you said paraphrased. The actual quote, "so well done but some perspective please", isn't much better.
If England men won the euros or world cup do you think any of us would care about perspective? No, we'd be celebrating like it was the end of the war we wouldn't be saying "well actually as a spectacle it was a pretty poor game".
Hence my reply - if you can't just enjoy England winning a major trophy, maybe don't bother watching.