That's the true definition of donationware.
If you're being forced to "donate" any amount of money upfront to use the software, it's no longer donationware, it's literally just paidware. Even if the source code is available elsewhere under a FOSS license, that specific copy is by definition paidware.
Sure. But the default is very powerful. They've proven they can literally get kids to eat healthier by where they place the vegetables in a school lunch queue.
In this case, if people who can afford it choose to pay for software, and the developers are supported... what's the harm (besides the annoyance)?