They are completely different platforms. AP1 is based on MobileyeQ3, it has one camera and one radar and ultrasonics.
AP2 is based on Drive PX2, it has 8 cameras, radar and ultrasonics.
Be happy that you got AP2 hardware.
I'm sure he's happy, but what he is saying is that you can keep AP1 functionality with the AP2 hardware. You don't have to upgrade to the functionality of the EAP. If he wants it to do the extra things of EAP over AP1 then he has to pay to upgrade the software to do it.
I was in the same boat and I chose to upgrade to Full Self Driving. Elon just verified that in about 3 to 6 months FSD will start to work better than EAP because of the extra cameras being turned on.
This basically tells you the difference. Pulled from Tesla's website from the learn more tab for FSD.
AP1 of course does some of the simpler tasks, keep within a lane and match speed.
Enhanced Autopilot
Enhanced Autopilot adds these new capabilities to the Tesla Autopilot driving experience. Your Tesla will match speed to traffic conditions, keep within a lane, automatically change lanes without requiring driver input, transition from one freeway to another, exit the freeway when your destination is near, self-park when near a parking spot and be summoned to and from your garage.
Tesla’s Enhanced Autopilot software has begun rolling out and features will continue to be introduced as validation is completed, subject to regulatory approval.
On-ramp to Off-ramp
Once on the freeway, your Tesla will determine which lane you need to be in and when. In addition to ensuring you reach your intended exit, Autopilot will watch for opportunities to move to a faster lane when you're caught behind slower traffic. When you reach your exit, your Tesla will depart the freeway, slow down and transition control back to you.
Autosteer+
With the new Tesla Vision cameras, sensors and computing power, your Tesla will navigate tighter, more complex roads.
Smart Summon
With Smart Summon, your car will navigate more complex environments and parking spaces, maneuvering around objects as necessary to come find you.