The sport is more of a hobby for too many to ever be taken seriously....
Winning at home (by a narrow margin) and getting hammered away is almost utopia for some...
These promoters don't have any burning ambitions to win things or, if also in the second tier, move into the top league, and are quite content on funding their hobby through affordable losses, or other businesses contributions..
They run their team pretty much for themselves and the riders, who often need two jobs in the UK to justify their outlay on machinery...
With the two jobs meaning two teams share the costs which then makes it cost effective for both clubs..
The clamour for "Team Six" isn't to make the top league look "relevant", (even 20 teams couldn't do that the way the sport is ran), it is simply to ensure another seven slots are available for riders, with four or five of those slots being so riders can double up..
Neither league has authenticity given the operating model (196 guests last season), therefore "Team Six" won't make a jot of difference to the way the sport is viewed by so many fans, and, (more importantly), literally thousands of "ex fans"...
In short. Nothing changes because the majority of those running it have a lot of their boxes ticked due to the way they do run it, hence they are content with things...
And as long as fans only slowly dwindle away, the losses won't become too big, too quickly, so the whole nonsense can continue on....
Until, of course, inevitably one day given its inexorable decline, it doesn't..