On CNN, they were interviewing a woman about half an hour ago discussing this problem. I thought she was Zelensky's wife, but I'm not certain. She was very blunt about the need for the US and other western allies to enforce real sanctions against Russia. She said there are many "loopholes" in the sanctions and this appears to be one. The implication from the US was that the no-fly zone sanction was just that - no aircraft with only a small loophole for emergency purposes.
As the woman CNN interviewed stated, these sanctions are supposed to be economic sanctions and they need to be tough to make Putin back down. She listed many of the loopholes and named names of companies, banks, etc. that need to participate but aren't. She said the sanctions will harm Putin in the long run, but don't have much immediate affect.
She listed 3 or 4 US defense contractors, including Grumman, who have facilities IN RUSSIA who need to shut those facilities down and leave.
She listed several big banks like JP Morgan, Credit Suisse and others who need to shut down their offices and leave.
She said the sanctions against Russian oligarchs need to apply to all of them, not just a few.
She also said the US and others need to stop buying Russian oil and gas.
She said Putin is in this for the long game and these sanctions as they are now are ineffective. The sanctions need to have a "shock and awe" affect (my terminology) on Putin in order to stop him.
I'm pretty sure it was the Ukraine president's wife. She's blonde, middle age and was interviewed in a lovely white room with shelves in the background. I've looked all over CNN's web site and YouTube page and can't find the interview. I have a feeling this woman was saying things that CNN's reporter didn't want to hear.
I will keep looking. If anyone else finds the video of the interview, please share. TIA
ETA: Here's another example of weak response to sanctions:
Microsoft halts sales and services in Russia
Microsoft announces they will suspend new sales of products in Russia. What about servicing existing contracts, etc? Microsoft and other US businesses in Russia need to close their offices there and leave. This reminds me of WWII, when so many US companies wanted to keep doing business with Hitler and the Nazis.