What are you using it for that you think it is best in class?
For everything I use it for IDA is still well ahead.
I only do x86 work, so maybe in other areas, but I doubt it? The decompiler is getting better, but still has quite a ways to go, the plugin support is way behind, etc etc.
Maybe they meant the class of open source reverse engineering tools
Just as others have mentioned, it can be problematic to even buy IDA Pro, so if Jane Haqor is able to get started with Ghidra and then develops a passion for the space, then that makes Ghidra best for that class, also
For everything I use it for IDA is still well ahead.
I only do x86 work, so maybe in other areas, but I doubt it? The decompiler is getting better, but still has quite a ways to go, the plugin support is way behind, etc etc.