That's writing Liverpool off far too quickly, in my opinion. They'll be there or thereabouts.
However, I shall recognise one scenario which would put the kibosh on them. If you look into it, Salah's injury record in his time with them has been downright supernatural. The guy plays every game, and the guy is virtually never injured! It's just weird. Mane has nearly as good a track record, although there have been periods of say four weeks in the odd season when he's been out for them. If one of them is out for four weeks or more, it would seriously hamper them. If both are out, that's it.
Chelsea don't depend to anything like the same extent on one or two players, and we certainly don't. As we proved the year we won the treble without Kevin for most of the season.
West Ham don't have the squad to go deep into the league cup, the Europa league, and mount a serious title challenge. If they're fighting on all three fronts, it will do them in in the end.