In the last 6 years (since the fact that there was a real problem first became obvious in 2000\01 and 2001 when we lost those 11 on the bounce) there have been:
The "comebacks" (without even winning a series) in India and New Zealand in 2001\02, heralded by so many as such brilliant efforts. Easy to forget this with the hindsight, but people went completely OTT at the time, saying England were building a good side.
The NWS of 2002, where this and that went right, and mostly it was just said to be the bowling that needed a bit of something and then we'd be a top side.
The NWC and NWS of 2003, which whatever you say David wasn't just concerning Gough and Johnson (who was aged 28 at the time), there was a whole load of overreaction concerning so-and-so - heck, some even dared to believe Vikram Solanki was going to become a ODI-class opener, for crying out loud!
The Champions Trophy of 2004, and the preceding India three-match series.
The 2005 ODIs against Australia where England were widely thought to have come-off well (even on CW there were those busy championing England as 2nd-best in ODIs) despite losing 3-2, with only rain and a Pietersen special stopping it from being 5-1. Duncan Fletcher said he was certain of 9 out of 11 for the World Cup team and before anyone gets on his back specifically, I don't recall one single person (other than me) saying at the time that any of those players were unlikely to become good ODI players.
Then there were the comebacks against Pakistan and in Australia.
As I said - I'm sick of it TBH. If doom and gloom after this "sensational" result is unacceptible, it's a damn sight better than the short-sighted nonsense of jumping on every single latest bandwagon and proclaiming Sajid Mahmood the greatest prospect since Bill Lockwood - which, while I'm exaggerating there, there were any number of people stopping not too far short of doing (who was yelling in every single article they wrote concerning the subject "get him out FFS!"? No-one, that's who - they were all too busy saying how he had potential because he was an athlete and could bowl a bit of reverse-swing).
False-dawns are what English do best in ODI cricket, and there's little different about this case than any in the previous 6 years. All that's happened is a few wholly average players have played above themselves and come-up against some rubbish and some underperforming opposition. You mark my words, sometime in the next 2 years we'll be back exactly where we were in June this year, in June 2006 and so many other times, and then before long we'll be back where we are currently again too.
It's too familiar for there to be any other logical conclusion.