I actually think it’s easier for a specialist from the lowest tier of the top 12 to be taken, because there’s no argument at all that they should focus on TFs. GB are struggling because there may just be that slight chance of grabbing bronze if Russia and/or China attempts to throw it away as usual: very small, but not zero. Enough that the selectors can’t bring themselves not to factor it in. Whereas for Spain and Belgium, for example, if it were to come down to individual medal versus team, it’s a no brainer.
The ones who this format fucks over the most are the 4th to 6th cohort, as they’re having to serve all masters without the advantage of two extra as the top 3 have. But of course Japan and Italy both have an extra spot to play with. So GB are probably the worst affected. And ironically the US are perhaps the team with least need for 6, since Biles, Carey and a healthy Lee could win the team title, be the two best Americans on each event and in fact be top 2 on the planet for everything but bars.