I don’t know how you can call a product someone spent time developing to help you save time and charging money for it abusive. It’s like saying charging for Figma is abusive because you can draw for free on built-in Paint. TinyImage allows you to do so many more things than just plain image compression, there’s so much work put into it that a Figma would probably need a whole department and a couple years to build all of these features.
You can use thousands of image compression apps and services that are available on the web for free, they could even be more powerful or give you much better compression than Figma or TinyImage plugin ever would. Besides, even in Figma there are now many free image compression plugins.
But if you want a native feature (understandably), feel free to vote for this (for some reason very unpopular) suggestion: Ability to control file size on export without plugins