Staying in a lower fw actually is always ideal specially if other entries are found in later FWs. Lower FW usually have more holes or can be poked around more thus it encourages more devs to actually work on them. New holes may appear on newer FW but they might be trickier to find and you might end up with the case of the Wii U where only a few found holes but weren't willing to disclose anything :x
True, but in this case, since the system is broken on the hardware level, it makes zero difference. Once you can pull off the bootrom bug (I assume at the kernel level), no more poking is needed. You are at the lowest level. You can do anything.
Now with the switch, the moment the devs say "it's okay to update it'll just take a bit longer for you to get cfw" I guess it's fine because they're basically saying that eventually they'll give you something and not just out right saying "yeah we have some exploits but we're not releasing anything in the future. Kthx".
Again, the whole "the lower the sooner" was never going to make much of a difference if they wanted to finish the CFW first (which I was hoping they would not ...). By the time the CFW is ready, someone in the team will have stabilized the exploits they have on any FW (or shortly there after).
If anything they would now benefit from "anybody being on X.X.X (e.g. 4.1.0)" so that they only have to implement one exploit. Potentially when the CFW is ready they may just tell you to update to 7.2.1 because they are going to want to just stabilize and package that exploit (if they got one).