It would also add another level of confusion as who would the Northern Irish play for?
No confusion. All Irish players are under the control of the IRFU and their Olympic body is the Irish Olympic committee. Therefore any Ulster players would play for Ireland – as they do now. That would have been the case at Rio 2016 had Ireland qualified.
I think 7s is now so specialized that’s it no longer the stepping stone to XVs that it once was. This brings into question why Unions would continue funding it.
England have been very consistent this year and have been the only team to regularly beat SA. Although they would supply the largest quota, Scotland and Wales have both shown enough to be represented in more than just name alone.
As 7s shifts away from its rugby roots and morphs into an Olympic sport it’s a no brainer to start running it like an Olympic sport right now.