I don't see how it has anything to do with Meraki that Google chose to remove L2TP client VPN support from Android. Meraki offers exactly the same support it did before for client VPN - L2TP and AnyConnect.
What has happened is you have chosen to use a software vendor, Google, that removed an existing protocol from your device (I used Android as well by the way). Part of the cost of choosing to stay with that same software vendor is investing in newer technologies to get (not the same but) better technology.