Well only banished from inside Chrome. Turning on the Chrome process tracker revealed that the 1Password extension would blow up to over 100 Mb of virtual memory. Then when I would kill that specific process, Chrome would wholeheartedly lock up. A force quit was needed to take out the crashing browser. My laptop was showing a load of over 35!!
AgileBits doesn’t seem close to solving the problem, so I’m just going to stick to using the 1Password extension in Firefox. There it seems much more well behaved. Meanwhile I just completely disabled the extension within Chrome. Now my laptop is a much happier camper.