Not really though. The Mary soft’s one of the best allrounders mostly just because it’s really well located in the wet>dry range while most are more dry biased… but they’re still a compromise, you give up a lot of capability compared to having say a Shorty and a DHR2 to swap between- and all where it really hurts, in the more extreme conditions. (The exception being the ultrasoft, which I love but it’s no more an allrounder than a maxxgrip shorty is)
And I doubt even many pros swap between all those tyres you mentioned, let alone normal riders. It’s good to have a choice but the 2 minions and the HR2 exist so close together that who really goes “I’ll swap from the DHR2 to the DHF for this ride”? In reality you either use one of those for all your riding exactly like you might the Mary, or you maybe swap between two, probably the Shorty and a Minion.
Re Forekaster vs Nic… The thing about the exo Forekaster is, it’s not tough but the protection is generally pretty well balanced across the tyre. It didn’t work for me since it has no cornering grip but I do think it succeeds at the job it was designed for (ie XC level grip but with a bit more durability). In fact, same job as the Nic used to do.
Whereas the Superground Nic is IMO just a disaster, because they’ve added weight and protection to the sides but they’ve left the treadface very weak. (according to schwalbe, the tread face is identical between the Superground and Supertrail) So it’s still just as weak and puncturey there as the old Snakeskin. Or, the really daft thing is it’s pretty much in the same weight class as the old, excellent supergravity which didn’t try to be so clever and just had a reasonable amount of protection all over.
Genuinely I don’t think it’s any more real-world tough than the Forekaster, despite being over 300g heavier. It’s like they’ve put a new super tough armoured door into a rotten old doorframe and expected it to keep thieves out.