You're doing the right thing. The highest priority in Tesla is time to market, they don't mind fixing a release product later after the sale. Therefore, they would design something which can do over the air update. But being their initial customer on a brand new product, the customer will pay a high price to work with them. They could be responsive, but you might have to call them often. The system would have a lot of down time. It could be a week or a month. Time lost in production is worst than you think. First, you will be in TOU plan with pge, and TOU is more expensive than Tier plan. Because you don't produce anything, so your cost of electricity will be high. You lost production, and paying higher price at the same time.
To me, getting a reliable system is the most important. SolarEdge has been around for a long time. Yes, a few years ago, they have some quality problem. But the HD system that Tesla install has a very good success, just search in enegrysage. It's like a number one choice for a cost effective installer. I have a solarEdge system. Paying around $200, you can extend the warranty to 25 years. Inverter has 12-15 years life span, that $200 is a very good insurance. Given if SolarEdge still around. Also from Tesla contract, as long as your inverter is under warranty, they will handle the replacement and labor for 20 years.
Also SolarEdge has a very big install base, if anything wrong, most likely you will get someone on forum have seem it. Other than that, optimizer and per panel monitoring using solaredge apps can help you to monitor the production as well. In theory, Tesla will do it. But given the price we pay, don't expect you will a class A service. It's very nice having all the data on your hand.
Some people argue having optimizer cost more, and more part means more failure. May be, but you don't pay more to get optimizer. To me, it a very good deal. As far as failure, I'm 100% sure early Tesla inverter user will get more problem than SE user.
Safety is another concern. Solar system using high voltage DC, arc fault can catch fire easily. I think optimizer is a greater solution to cut power earlier and prevent damage. Lost of communication to a optimizer will cut power to all optimizers, and stop all the high voltage for rapid shutdown.
For a string inverter like Delta, I don't even know how they would be able to do rapid shutdown. From Delta webpage, they need to install Tigo TS4 unit on each panel for rapid shutdown. I don't know anything about it. Someone with delta can tell you more.
Anyway, good luck.