My last A/B was many years back, but I remember I used to have problems with emulsions too. But I was filtering just with t-shirt, so maybe some proper filtration migh mitigate them.
OP was asking about MHRB, so I would suppose his bark is >= 1%. One 5l bottle can do 250g of bark and with proper ratios (1:15) it is far from thick. Compared to cacti it is just a water

The result would be 2,5g of light and for good bark much more, my bark has always > 2.5%. Definitely no reason to need bigger extraction if not producing commercially. But nobody does that here, right? But yes, for some other source material with lower content, A/B might be better.
Acceptance of the fact that our reality is not real doesn't in fact mean it is not real. It just leads to better understanding what real means.