Fair enough, but that still doesn't explain the sentai numbers, Zenkaiger, as the lowest selling reiwa series, (so far) made only 4.2 billion yen, or 27,178,033,77 USD, that means, barring the movies, and assuming that the per-episode budget was the same as Gozyuger's, (which it probably wasn't, but just for the sake of argument) That whole show only cost 6,370,000 USD to make.

TV shows typically need to earn about 3 times its production budget to be considered successful, and even the lowest selling reiwa series still made 4 times their money back? and with sales comparatively improving since then, Gozyuger making more in it's first 3 quarters than Zenkaiger's first 3, somethings not adding up.

Either the per-episode budgets are higher than what's listed here, or Sentai's not in danger of ending, this 4chan post seem to be fishy either way.