The double standard accusation comes from assuming good faith on the part of Namecheap.
Since I am assuming Namecheap is being truthful, the double standard is that many countries have committed far worse war crimes and human rights violations - yet Namecheap seems not to care.
If you aren't assuming good faith, and you think that the reason is actually just that they have employees in Ukraine, then the language on the notice is a lie which could only have been there to get better PR.
Since I assume good faith, I'll interpret it as a double standard instead.
The sanctioning countries are third parties to this conflict. You can talk about their double standards all you want, I won't disagree.
But Namecheap is not a third party to this conflict. They have full right to care more about what is happening to themselves and their families than what happens to people in other unrelated countries and their families.
Their reasoning in the email is a factual truth: war crimes in Ukraine specifically. They're allowed to care about themselves. You don't have to care about them yourself, being a third party that has the luxury of double standards in this conflict. But don't project your current position in this conflict onto them, and don't hide your envy or indifference behind demagoguery about their email's wording.
Namecheap has decided to suspend service to Russia because it's employees are affected by its actions, which is fine.
This isn't the same as doing it because of warcrimes and human rights violations. It's not okay to pretend that's the reason, because if it was, they'd have denied access to many more countries.
There is no demagoguery. You attempted and failed an appeal to emotion to distract from simple logic twice now.
I care about this conflict just as much as the others. If you only care about conflicts that affect you personally, stop pretending that you are a human rights warrior doing this for higher ideals.