Chalobah produced an impressing finish to give the Blues the lead
There was definitely a point in the not-too-distant, VAR-dominated past when Chalobah's first half strike would have been disallowed, wasn't there?
The ball did clearly strike Rudiger's hand before it dropped to his young defensive teammate to sweep home, but then it only hit Rudiger's hand because it came off Adrien Rabiot in front of him. There wasn't really much the German international could do about it.
Chalobah didn't deserve to have his fine finish chalked off just because Rudiger was in close proximity to Rabiot, even though he definitely would have done in recent seasons.
A sign that laws and VAR are beginning to learn to live in harmony? Perhaps.
And that has to be something that we can all celebrate.
2. A convincing case for the defence
Chalobah found the net for the third time this season
(Image: Chelsea FC via Getty Images)
In all honesty there is nothing that mere laws can do to stop Chelsea defenders from scoring anyway.
Chalobah's strike was his third of the season in all competitions, and a 15th of the campaign for a Blues 'defender' – even if that description is somewhat nominal for the likes of James, who made it 16 in the second half, and Ben Chilwell.
The wing-backs were showing their attacking prowess right from the start at Stamford Bridge, where only a fine stop from Wojciech Szczesny denied James a now customary goal in the first half, which the England man made up for in the second period.
Chelsea have so many threats all over the pitch, and the fact they can score from anywhere and anyone (Manchester City's defenders have scored five goals between them this season, and Liverpool 's one) marks them out as such a threat.
3. And they can defend too
Thiago Silva's brilliant clearance from Alvaro Morata's shot was one of the first half highlights
(Image: Getty Images)
They don't just score goals either.
Thiago Silva's superb first half clearance from Morata was one of those moments which seemed to sum up the careers of both – the Brazilian magnificent and putting defending his goal above anything else in life, while the Spaniard is forever the nearly man, particularly on this ground.
It wasn't long after that home supporters greeted Morata with a chorus of "Chelsea reject" as he lined up for a corner.
That is hardly an exclusive group to belong to to be fair to him, but it's also not wrong is it?
4. Callum Hudson-Odoi gets in on the act
Hudson-Odoi's goal sparked delirious scenes
(Image: Action Images via Reuters)
The celebrations that greeted Hudson-Odoi's goal were not those you usually see for the third strike in a 3-0 win.
It is somewhat strange to think that the attacker only turned 21 a couple of weeks ago as he's been around the Chelsea squad for a while now, but it is only recently that he'll feel he's been given a fair crack of the whip.
This was, after all, his seventh successive start for the Blues in all competitions, a run during which he's never failed to play fewer than 70 minutes.
He only had one goal in that run though, in the 7-0 win over Norwich, prior to his gleeful strike here, and if he's going to stay in the side now the big name attackers are returning then he's going to have to increase those numbers.
5. But it's not all good news
N'Golo Kante left the pitch in the first half
(Image: Facundo Arrizabalaga/EPA-EFE/REX/Shutterstock)
There were a couple of blots in the Chelsea copybook though, namely in the form of the injuries suffered by both N'Golo Kante and Chilwell.
The French midfielder has suffered from more than his fair share of problems in recent times, and it didn't look promising when he headed down the tunnel before the break to be replaced by Ruben Loftus-Cheek.
Chilwell's second half knee injury then looked to be the more painful one, and it would be a surprise to see either player for Sunday's clash at home to Manchester United.
If one squad can sustain blows like that though, it is the Blues.