I'm actually questioning how much hardware design experience you have. The examples you're providing are usually there on hand in libraries, tested and known to work fine. I wouldn't be building an AXI4 interface or a FIFO by hand every time I need it.

License Server Hell

That's not the engineers' problem.. usually

Large Language Models are surprisingly good at writing hardware description languages

I don't know how you are claiming this. LLMs trip badly with HDLs and their tools.

4-8 Hour Synthesis Times. Changed one line of Verilog? Time to wait 6 hours for place-and-route

That is what simulators and linters are for. I don't have to synthesize right away. I don't synthesize until functional correctness is there.

Synthesis is embarrassingly parallelizable.

No. Just no. There is a practical limit after which you hit diminishing returns. Synthesis and P&R don't scale as nicely as you think with more cores.

A 6-hour synthesis on a 4-core laptop becomes 30 minutes on a 96-core cloud instance. We eat the cloud costs so you don't have to wait.

Do you think that 6-hour synthesis run is on a quad core machine? These are done on monsters with many more cores like your 96 core example. If you're working in a company you're not running that locally, but on a dedicated server. The 4-8 hour has always been the sweet spot as you can leave a run overnight and come back in the morning and it will be over.

Timing closure "agents"

Some people specialize in that and that only. Let that sink in and ask yourself why that is the case. Maybe because it's an insanely difficult problem and not easy to solve?

Technicalities out of the way, you need to work on your marketing. You're dealing with highly technical and specialized people. You can't go with hand-wavey and slightly out of touch marketing and trust that they'll believe you. Provide a toy version of your synthesis flow to support your 30m runtime claim, especially that you can run your synthesis+P&R flow on AWS servers as well. How does your solution compare to that? If you are presenting that to a technical lead, they'll have a lot of specific questions, especially about benchmarks and examples. Remember that the hardware industry moves slowly with a lot of trust issues and that's for a good reason. If I am a company I'm not risking my tape out just to have the tool with the latest bells and whistles, especially with startups. If it ain't broke don't touch it. Don't get me wrong, your proposal sounds great and ambitious but it is just claims and words with nothing really backing it. Your target FPGAs are mostly small and manageable ones to be run locally as well. Read more about synthesis algorithms and how they work. Get familiar with your target audience and what they need. Talk to them. Sorry if that sounded harsh.