1. Since you say it is an open market with alternatives, I don’t see why you seem to take issue with the blog post author taking one of the alternatives.
2. I thought the author did have some issues with the product. Like lack of persistence of uploaded files, price going up, and the support for the author’s current main language, Lisp, being not as good as for Python.
I don’t see how it’s a bait and switch to increase prices to a sustainable level if it wasn’t previously there. If you like a SaaS product you should hope their business model is aligned for durability exclusive of burning VC cash in my view.
If the product doesn’t meet your needs, fair game. Complain away it’s good feedback the vendor needs to hear to improve. Vote with your dollars like this author did.
Sure, but that doesn't make their actions not bait[ing you with a low price and lots of features] and switch[ing plans to remove some of those features and raise the price].
It's still a bait-and-switch move, IMO. You might choose to tolerate or accept it in the interests of the company being sustainable, making it a "bait and switch that you're OK with".