No good...
You could probably find some solution- using virtual switches for Amazon Alexa integration as an example, but this will be a Cloud-dependant workaround, which will stop working at the moment when your internet connection is down... : (
I am not aware of a local eWeLink integration for Hubitat.
As much as I don't want to promote Home Assistant, in your case, having 40 unusable switches in Hubitat - this is probably a possible solution :
Actually, if HA integration works - it will be a very good solution!
HA will act simply as a bridge to bring these WiFi switches to Hubitat, using the Home Assistant Device Bridge (HADB) integration. And I suppose everything will be working locally.
You can setup Home Assistant on a virtual machine for the initial tests. There is no need to add any Zigbee dongles or other hardware. I remember there was a very easy to install Home Assistant virtual machine on a Windows PC - it is ideal for quick tests.
