I don't know about that actually. There's been a lot of bickering and childishness from toei guys on twitter over the last several months.
I dunno if you follow any Japanese entertainment besides tokusatsu, but... I mean, that's Japanese staffers on Twitter in general? A lot of anime guys say all kinds of batshit stuff. I've never seen a case yet where a tweet has actually had consequences beyond dudes sniping at each other, either on Twitter or through dueling interviews. Maybe we'll get there one day, or it's happened and I'm just unaware, but for now tweets just don't seem to be taken all that seriously in business or PR terms. Fans obsess over them, but... well, fans.
The whole show's charm was supposed to be these nerds who thought they were heroes and ended up actually being heroes, and that was supposed to be great.
I don't agree with your assessment of what the show was "supposed" to be. I think the show was always angling for the ending's "be careful what you wish for, you just might get it" theme. Every time Akibaranger does something specifically to try and become official, they pave the way for the Delusion Empire to come into existence. That, in turn, leads directly to the ending and their own identities coming under assault.
The thing they discuss in Secret Base, where they decide it's better to be canceled and remembered by otaku than bastardized by Hatte Saburo, is actually an attitude some anime creators held in the early 80s. A lot of shows from that period that got canceled ended up having utterly bizarre, psychedelic endings that made them immortal in the minds of otaku. In a way, Akibaranger's ending was perfect for such hopelessly nerdy characters.
I guess the staff thought it would be too "cheesy" to have it be anything other than a TV show.
I don't know why anyone would make this assumption, when the ending the creators actually produced is extremely cheesy and is clearly written that way on purpose. Akibaranger wasn't trying to be edgy, the mode of writing it used for its ending dates back to the black existentialist satires of the 50s and 60s (Catch 22, Dr. Strangelove, Rosencrantz and Guildenstern are Dead). If anything, it's a bit
dated.
I think Akibaranger's ending was pretty much what the rest of the show was written around. It's why the show starts very tame, just a bit farcical and full of goofy coincidences, then ramps up the surreal and existentialist elements throughout the series. Nobuo's romance flag sets up Yumeria's dead mom sets up the destruction of the fourth wall sets up the Delusion Empire, which reveals the high price of becoming official.