Thierry Henry was not shocked, and in truth, even Arsenal gave off the impression that they too were expecting this implosion.
Passive, pensive and poor in every possible element, they departed Anfield embarrassed after another inconspicuous performance.
For the third consecutive meeting, Liverpool left Arsene Wenger with his hands over his head and his side with their tail between their legs.
They had zero solutions for the dynamism of Sadio Mane, Roberto Firmino and Mohamed Salah; the trio’s dazzling darts and fluidity completely flooring markers.
Liverpool manipulated the half-spaces, and when they needed to, just bulldozed Arsenal out of it.
If anything, Arsenal can feel somewhat fortunate that the scoreboard only read 4-0, with the Reds smashing 10 shots on target while they faced none in response.
The Merseysiders, unbeaten against the top six last season, signalled their intentions to continue that assertiveness in this campaign.
Not many teams will be so tactically bankrupt as Arsenal were against them, but plenty will nevertheless struggle to contain their blurs of attacking brilliance.
Liverpool’s goals were varied and relegated talk of the absence of Philippe Coutinho, who is holding out for a switch to Barcelona.
Neat interplay from Emre Can and Mohamed Salah was followed up by a fantastic ball in from Joe Gomez, with Firmino anticipating the flight of the cross superbly and timing his run accordingly.
Arsenal allowed him to track the ball and head it unchallenged, with Petr Cech conceding his 27th league goal against Liverpool – more than he has let in against any other opponent.
That the figure remained stagnant until the 40th minute was disbelieving given the utter dominance of the hosts in the encounter.
Gini Wijnaldum and Emre Can took turns to ridicule Arsenal’s midfield, while Jordan Henderson continuously thieved possession off them.
As in their previous games, Liverpool’s front three had perplexed their opponents all afternoon; a trend likely to continue given their cocktail of explosiveness and intelligence.
Arsenal had been swamped, stifled and so static so it would have been criminal for Liverpool to allow them to head into the interval only 1-0 down.
Mane, who has directly contributed to six goals in as many league starts against the Gunners, took care of that.
Can and Firmino combined for one of their multiple dissections of the clash, the midfielder feeding the No. 9 quickly from a counter.
The Brazil international turned and sprayed a pass into the speedster’s path with Mane standing up Rob Holding, skipping inside him and firing a curler beyond Cech into the far corner.
The conviction in which he executed that period of play should concern defenders both domestically and in Europe – the Senegal star is starting to realise the full extent of his powers.
Having seen his fellow forwards dismantle the visitors, Salah wasn’t to be the odd one out.
Twelve seconds after Arsenal were attacking via a corner, the Egyptian had robbed Hector Bellerin, sprinted clear and ensured Cech was cursing again.
He then supplied a stellar ball in for Daniel Sturridge to inflict further damage on 77 minutes after Firmino and Can had the Gunners ghosting after them one final time.
At the other end of the pitch, where Klopp opted to field Loris Karius in goal and rest Simon Mignolet altogether, Liverpool kept a fourth league clean sheet at Anfield on the spin for the first time since September 2013.
Arsenal’s deficiency of ambition aided that, but it was another accomplished performance from the Reds, who have finished their schedule of five games in 15 days with just one blemish – the 3-3 draw at Watford.