Seems like you're stuck in 2015, rather than in the present.
Musielak & Janowski are declining & Zagar is way way over the hill.
These 3 are nowhere near "World Class." They can still have "World Class" moments but that's it, moments. They're absolutely no better than the 3 you compare then too, especially in England.
What's the point in arguing that MJJ is better than Doyle & Sayfutdinov?? Can MJJ score 31 points a meeting for Birmingham??
The divide the the Premiership at the start of the season was huge. Sheffield losing Woffinden & their 2 changes has dragged them in now with Leicester & King's Lynn. A lose to any of the top 3 riders at Belle Vue & Ipswich will suck them down massively too. But it's absolutely certain that Birmingham & Oxford won't be close to the Play-Offs.
Currently, the Premiership is this:-
1, Ipswich
2, Belle Vue
3, Sheffield
4, Leicester
5, King's Lynn
6, Oxford
7, Birmingham
The gaps are that big from top to bottom, it's clear and obvious to (almost) everyone.