I understand how that may feel. Orion founder here. Here was the thought process behind the choice.
When you decide to build a browser you first need to decide the browser engine.
We decided we don't want Chromium (because who needs another Chromium browser) so that left Gecko and WebKit.
Since I happen to personally use macOS and thought it had wonderful future as a consumer OS (this is all happening in 2018) I decided we should go with macOS and picked WebKit because it is native on macOS while Gecko isn't. It is all the fastest web rendering engine, with the best energy consumption and very robust privacy practices. All good base for a fast, zero telemetry browser.
Also Safari left a lot to be desired (my previous browser of choice) so since we are building a browser from scratch, why not build something that works great on Macs/iPhones first and then we will think about other platforms when we get there.
When you decide to build a browser you first need to decide the browser engine.
We decided we don't want Chromium (because who needs another Chromium browser) so that left Gecko and WebKit.
Since I happen to personally use macOS and thought it had wonderful future as a consumer OS (this is all happening in 2018) I decided we should go with macOS and picked WebKit because it is native on macOS while Gecko isn't. It is all the fastest web rendering engine, with the best energy consumption and very robust privacy practices. All good base for a fast, zero telemetry browser.
Also Safari left a lot to be desired (my previous browser of choice) so since we are building a browser from scratch, why not build something that works great on Macs/iPhones first and then we will think about other platforms when we get there.
That is pretty uch the whole story.