No, your whole "any adult with a smartphone should have $5" spiel you do comes across very hoity-toity, and it comes across as a very shitty attitude towards people who just want to be able to enjoy your work.
Edit: Essentially, you're being a dick about it. You could just leave the explanation at saying
1. It takes extra work our dev team is not accustomed to
2. You get latest features that are also only available to paying members on Subscriberstar
and just leave the whole stupid "you should have $5" out of it, especially as for several people have stated that $5USD skyrockets prices in poorer countries. I don't know how itch.io works, but many developers lower prices in other countries because of this issue. Stellaris ($40), for example, only costs $3.81 in Argentina, $4.25 in Turkey, and $10.85 in Russia in order to adjust to the purchasing power of each nation and their currencies.