Hey, thanks for calling us out, Aristarchus!
We talked about this internally. We would absolutely love the opportunity to work with the other future ZOMG members, and to meet lots of developers who want to build on Zcash. However, we can’t afford the time commitment right now because all of us are focused on the commitments we’ve already made in pursuit of our North Star of building a world-class UX for ZEC.
[Brief digression: What is ECC up to nowadays?]
Currently, our priority is executing the Network Upgrade 5 (NU5) core protocol upgrade, in concert with a large and rapidly growing ecosystem of allies — wallets, exchanges, the Zcash Foundation, various ZOMG grant recipients, etc. — who make up the Zcash network. At the same time, we’re upgrading accompanying software such as our Wallet SDKs. Bundled together, we’re calling this product suite Halo Arc for Zcash.
Not everyone might know this, but NU5/Halo Arc is our biggest and most ambitious project yet! It will be the first deployment of an entirely new zero-knowledge proving system, Halo, which was the first discovery of trustless and recursive zero-knowledge proofs. Deploying it in Zcash will eliminate trusted setup and bring performance and privacy improvements. Additionally, it makes Zcash ready for future upgrades such as scalability enhancements and new zero-knowledge features such as Zcash Shielded Assets, and potentially other novel functionality.
On top of that, we think Halo will turn out to be a great foundational technology to enable Web3, and we hope to leverage it to make the ZEC coin a core component of the coming Web3 world, as indicated by our partnerships with Filecoin and Ethereum orgs and Agoric.
Not only that, but NU5/Halo Arc also heralds the launch of the Shielded By Default campaign and we’re trying to get all wallets and all exchanges that support ZEC to participate. The more of them do so, the more users around the world get the convenience of having ZEC available in all of their products and services, along with the unbeatable on-chain security of the Shielded Pool.
(A call to all Zcashers: Contact your favorite product or service that supports ZEC and ask them if they are ready for Shielded By Default!)
But all this is only the beginning! That’s just our deliverables for early 2022! Beyond that, we’re already hard at work figuring out the necessary tech, product, and marketing for our three year roadmap to move Zcash to proof-of-stake (based on the community’s clear signal of approval for that), build direct interoperation with other good Layer-1 blockchains, and implement our own specialized Zcash wallet.
Also, even though we’ve decided to prioritise all of the above over implementing ZSAs ourselves, we’re continuing to do product research around ZSAs in support of another team — perhaps QEDIT — who could build it.
Also there might be a few happy surprises coming out, along the way, along the lines of all of the above. 
[End of brief digression]
Okay, so after talking it over, we currently don’t believe we have the capacity to serve on the ZOMG this time around.
Two more comments about ECC’s involvement with ZOMG:
First, even though we didn’t have a representative from ECC on the first ZOMG committee, our direct connections with the ZOMG members plus the high degree of transparency they practiced made it easy for us to track what they were doing. So I have no concerns about lack of transparency, assuming the next ZOMG behaves somewhat like the first one in that regard.
Second, even though we weren’t on the first ZOMG committee, we did contribute in a few ways, by meeting with people, introducing people to ZOMG, giving feedback on proposals, checking deliverables, chiming in on the forums, and so on. We expect to do that again.
Okay, thanks again for asking, Aristarchus. Even though we don’t have the capacity to sit on ZOMG ourselves this time around, we’re all quite enthusiastic about the next ZOMG and all the goodness that we expect to come out of it. 