First of all, I agree entirely the current series at this point is vastly superior to the first at the same junction, I now look forward to each episode and am honestly trying not to fall behind. I actually gave up on series 1 some time around episode 6-7 because I missed a couple of episodes and wasn't interested enough to catch up online. I came back to it after I eventually got to see the Thor and Captain America sequels (still the only MCU films I haven't seen at the cinema) and I was very glad I did by the end of series 1, now series 2 is looking so good cannot help but be excited for the MCU's upcoming TV projects.
As for the problem I wrote about, I agree it really doesn't bear overthinking (but I overthink it anyway, because that's who I am
), I am completely aware of the long tradition the comics have of attempting to escape the problem and it's entirely true that if Thor just rode in and hammered the bad guys to death each and every time it would quickly become boring. In fact that kind of highlights another related issue with the more powerful heroes i.e. Thor and Hulk. It's extremely difficult to give them a bad guy who offers them a credible threat without that bad guy also being the kind of uber-threat that The Avengers or the FF would generally deal with, Hulk has already been shown to be capable of throwing around a 'god' as though he is a toy, who could even be a villain for him in a standalone film now? The Aether is the perfect example, Thor is strong enough that him fighting Malekith solo never looks out of place, but the Aether is still the kind of threat that you'd think would draw the entire world's notice, and no matter how strong you are, help is always useful.
Anyways at this point I am actually going off-topic, so I'll bring it back around. What follows is my answer to amphibians post, but the first part at least contains spoilers in the form of a summary of the threat as it seems to be shaping up at the moment:
So I do believe that this 'itty-bitty nascent threat' poses a greater threat than the last, if only because the TV tradition of 'big bad's' getting stronger each series, think Buffy (with the exception of the trio of course). However, that is really besides the point because even while watching the conclusion to series 1 I did find myself believing that Paxton/HYDRA would draw some outside attention, I struggled to believe that Captain America wouldn't help at all (seeing as I watched most of the series after CA2) even allowing for the levels of disillusionment he seems to be suffering. I mean they did an admirable job of defeating the threat themselves (and I absolutely loved the last 6 or so eps) but the general position of 'Supers' is to underrate 'non-supers' why on earth would they believe SHIELD capable of dealing with the threat without them?
At this point I realise my position is hopeless, and I am not even arguing because I readily agree with pretty much everything you both say apart from our rating of the nascent threats, I really should just take Abyss' advice and stop overthinking this, I'm just so terrible at not overthinking...